digsby
IM, email and Social networks in one easy to use application


Instant Messaging
digsby is a multiprotocol IM client that lets you chat with all your friends on AIM, MSN, Yahoo, ICQ, Google Talk, and Jabber with one simple to manage buddy list.

Email Notifications
digsby is an email notification tool that alerts you of new email and lets you perform actions such as 'Delete' or 'Report Spam' with just one click.

Social Networking
digsby is a social networking tool that alerts you of events like new messages and gives you a live Newsfeed of what your friends are up to.

Last Updated 11 April 2011
Win 98/Me/2000/XP/Vista

Yahoo! Messenger 11
Instantly communicate with your friends online

Connect with all your friends:
Instant message friends on Yahoo! and Windows Live™ Messenger. See which friends also use Yahoo! Messenger

Enhanced video calling
Feel like you're there with high-quality, full screen video and voice calling.

Keep up with what your friends are doing
See your friends' latest updates from Yahoo!, Flickr, Twitter and more with the new “Updates” view.

Improved language support
Change your preferred language in Yahoo! Messenger with just a few clicks.

Web
Connect with friends from any web browser — no download required.

iPhone
Take the best of Messenger anywhere on your iPhone.

More Features:
• Instant message with one friend, or conference in a bunch
• Easily find or invite friends from other services to come chat with you
• Use the built-in media player to watch web videos and view photos with friends.
• Show your style with emoticons, Avatars, audibles and IMVironments

Last Updated 29 August 2011
Win XP/Vista/7
Linux
Mac

Trillian Astra
Versatile multi-IM chat program

Trillian is a fully featured, stand-alone, skinnable chat client that supports AIM, ICQ, MSN, Yahoo Messenger, and IRC. It provides capabilities not possible with original network clients, while supporting standard features such as audio chat, file transfers, group chats, chat rooms, buddy icons, multiple simultaneous connections to the same network, server-side contact importing, typing notification, direct connection (AIM), proxy support, encrypted messaging (AIM/ICQ), SMS support, and privacy settings.

Without stealing your home page and with no other included software, pop-ups, or spyware, Trillian provides unique functionality such as contact message history, a powerful skinning language, tabbed messaging, global status changes (set all networks away at once), Instant Lookup (automatic Wikipedia integration), contact alerts, an advanced automation system to trigger events based on anything happening in the client, docking, hundreds of emoticons, emotisounds, shell extensions for file transfers, and systray notifications

Last Updated 17 May 2011
Win 98/Me/2000/XP/Vista/7
Mac and iPhone

oovoo
Amazingly simple crystal clear video chat

ooVoo has many great features - from video calls with up to six people at once to video messaging to chat and file transfer capabilities.

Video conversation
A video conversation is like a phone call, only better! It's the next evolution in online communication, allowing for richer connections, more expressive communications - all in real time and with amazing, high-quality video.

It's like nothing you've ever seen before
Talk one-on-one or with up to 6 people at a time
Smooth video displayed in 3D with clear sound
Leave a voice, video or text message if there
is no answer to your call
Send files and text messages
Adjust/Mute microphone, speakers or camera
Choose your ringtone
View call history (missed calls, incoming calls, etc.)

Video messaging
Video messages are a great way to send a dynamic,
personal communication to friends, family, co-workers - anyone! Why send a plain text email or a boring voicemail when you can really express yourself with video and voice!
Record and send video messages to ooVoo users or friends who don't have ooVoo yet
Send to as many people as you want at once
Play video message on any computer
Save the video message to your computer
Save unfinished video messages to Drafts folder
Get creative! Use video messages for birthday party invites, sales contracts or a postcards from your travels.

oovoo me link
Want to make yourself easy to find online?
Put your ooVoo link on your blog, MySpace page, or in your email signature - anywhere you go online - so you can stay connected
with your network in an incredible new way.

Add your ooVoo me Link to any webpage or to your email signature
Contacts can easily click-to-call you from ooVoo me Link
Privacy options allow you to decide who can contact you

Last Updated 17 May 2011
Win XP/Vista/7
Mac OSX 10.4 and higher

Pidgin
Multi-platform instant messaging

Pidgin is a chat program which lets you log in to accounts on multiple chat networks simultaneously. This means that you can be chatting with friends on MSN, talking to a friend on Google Talk, and sitting in a Yahoo chat room all at the same time.

Pidgin can log in to multiple accounts on multiple IM networks simultaneously. This means that you can be chatting with friends on AIM, talking to a friend on Yahoo Messenger, and sitting in an IRC channel all at the same time.

Pidgin supports many features of the various networks, such as file transfer, away messages, and typing notification. It also goes beyond that and provides many unique features. A few popular features are Buddy Pounces, which give the ability to notify you, send a message, play a sound, or run a program when a specific buddy goes away, signs online, or returns from idle; and plugins, consisting of text replacement, a buddy ticker, extended message notification, iconify on away, spell checking, tabbed conversations, and more.

Pidgin can work with:AIM
Bonjour
Gadu-Gadu
Google Talk
Groupwise ICQ
IRC
MSN
QQ
SILC SIMPLE
Sametime
XMPP
Yahoo!
Zephy

Last Updated 16 February 2011
Win 95/98/Me/NT/2000/XP/Vista/7
Linux

Miranda IM
Miranda IM is a multi protocol instant messenger client

Miranda IM is designed to be resource efficient and easy to use. It uses very little memory and requires no installation. Just unzip and run! This also makes it ideal for users that want to run their messenger client from a removable storage such as an USB memory stick. It can even be stored on a floppy disc if not too many plugins are used.

The powerful plugin system makes Miranda IM extremely flexible. Only the most basic features are built in, but there are currently more than 200 plugins available for download that allows users to extend the functionality in Miranda IM.

Plugins can be installed to add support for ICQ, AIM, MSN, Jabber, Yahoo, Gadu-Gadu, Tlen, Netsend and other protocols.

Last Updated 08 February 2011
Win 2000/XP/2003/Vista/7

AIM - AOL Instant Messenger
Multi protocol instant messenger client


AOL Instant Messenger lets anyone on the Internet exchange personal messages instantly and privately with others using the AOL Instant Messenger--no matter what country you are in or how you are connected to the Internet!

Features:
Chat with friends on the web and AOL.
Express yourself by choosing a Buddy Icon or create your own.
Make your IMs stand out with rich text and smileys.
Transfer files, photos or music while IMing.
AIM Expressions: Express yourself and send your expressions to friends and family when you initiate a conversation.
Content Panels: Get your stocks, news, entertainment, and expressions in the buddy list.
Typing Indicator: See when someone's responding to your messages.
Use all your screen names at once - No more signing on and off just to change your screen name!
Games - Play games head to head with someone you know, and IM while you play!
Video IM* - Wonder what someone looks like? See who your IMing, using Video IM*.

Last Updated 10 January 2011
Win 2000/XP/Vista/7
Mac 10.1 or later
Linux
PDA

Windows Live Messenger
The next-generation MSN Messenger

Windows Live Messenger has a fresh new look, but it's still got all the features you know and love.

Get connected
Instantly connect to the people who matter the most—via text, voice, or video. Even if they’re offline, you can leave a message or send a note.

Take control
Choose from a variety of status messages for any occasion. Use Windows Live Contacts to control your personal information—who sees it and what they see.

Share yourself
Share your personal files, photos, and videos of any size. Just drag and drop into a Shared Folder.

Last Updated 04 October 2010
Win XP/Vista/7

Camfrog
Popular video conferencing software

Camfrog Video Chat allows you to join real streaming video chat rooms where you can hear, see and chat with many people at a time.

Make free live audio & video calls world-wide
Join live webcam chat rooms or host your own for free.

Blazing fast streaming video and amazing audio quality
A live webcam user photo directory makes it easy to meet new people.

Video chat 1-on-1 and join video chat rooms.
No webcam is required to see people.
Camfrog works behind all firewalls, routers, and wireless networks.
It's easy to find new people to video chat with our user directory.

Last Updated 25 March 2010
Win 98/Me/2000/XP
Mac OS X

Qnext

Universal Instant Media Messenger – Video & Voice Chat, File transfer, Photo & file sharing, Music streaming and more

Qnext is the world’s most advanced Universal Instant Messenger, allowing you to send and receive messages with buddies on any of the following networks:
MSN, Yahoo!, AIM, ICQ, Jabber, Google Talk, IRC, iChat coming soon.

But messaging is only the beginning. Check out the other cool features that make Qnext the last messenger you’ll ever need to download:
iZones

Let your buddies listen to your music, view your photos, and download your files just by dragging folders into any IM conversation! Learn more.
File Transfers

Send and receive files with Qnext friends and on any messenger network at the speed you’re used to.
Emoticons & Fonts

Don’t lose that personal touch! Enjoy all the same emoticon- and font-sets that your old messenger had.
Email features

Import your address books from Hotmail, Yahoo! Mail, GMail, AIM Mail, or .mac and you can send quick emails as easy as IM.
IRC

Qnext has a built-in IRC client so you can connect to thousands of channels across the world!
Advanced Features

You can do a lot more with friends who also use Qnext, like 4-way video chat, unrestricted file transfers, multi-player games, and more! See why you should convince your buddies to make the switch

Last Updated 15 May 2008
Win 2000/XP/2003/Vista
Linux
Mac

GoogleTalk

Text chat
Instant messages: share quick thoughts in real time
Status updates: see if friends are around and what they are up to
File transfer: instantly send and receive files, pictures, and more.

Voice chat
Free long distance: make PC-to-PC calls to people anywhere in the world
Audio conferencing: talk to multiple people at once
Gmail integration: chat with your friends on Gmail.

Win XP/2003/Vista/7

BitWise Chat
Instant messenger with many advanced features

BitWise is the first cross platform, encrypted, direct-connect instant messenger offering the same features on Windows, Linux and Mac OS X. Without ads or spyware, BitWise is loaded with features such as fast file sharing, "tabbed" interface, automatic encryption of messages and files, whiteboards, XML and plaintext logging, invisibility, offline messaging and more. You owe it to yourself to protect and secure your instant messages like you protect and secure the rest of your PC.

BitWise IM is...
an instant messenger with many advanced features,
encrypted using proven, industry-standard methods,
available for Windows, Mac OS X and Linux,
direct connect, sending messages, etc. without a server,
its own network that does not rely on another system,
committed to privacy with no ads or spyware.

Win 98/Me/NT/2000/XP
Linux
Mac

Chatterbox
Specifically for the singles community and online dating

Chatterbox is the first ever Windows based Chat application, specifically for the singles community and online dating.

Chatterbox monitors other online Singles members within its own community and lets you know when someone takes an Interest in you your perfect matches online, when you have email or even when someone takes an interest in you and alerts you with detailed information about each person.

Chatterbox looks for recent members that have just joined to allow you the first opportunity of making contact.

Features:
Advanced search
Photo viewing
Username search
Unlimited chat time
Store Favorites
Easy to use

New Features:
Video Webcam
Direct voice to voice
Local and Internal calls

Win 95/98/Me/NT/2000

BORGChat

The most complete LAN Chat program.

Features:
#Main chat. This chat is available for all users in every workgroup
Private chat-Choose someone to chat with in a private chat.
#Channels. Very similar with main chat .In the near future you will be able to set a password for others to join it.
Message board .Here you can post a message which will be send to other users even if you exit BORGChat
Private message (in a window or a balloon) (to user /selected users/all users)
Send File with pause and bandwidth control
Send Picture from Clipboard
Beep user /selected users/all users
View computers and shares from your network
Map network drive
Message on Messenger service/Winpopup program
More than 80 ANIMATED SMILES and the possibility to add your own
Html stuff (Bold,Italic,Underline,Insert: IMG,QUOTE,URL,HR)
Quick messages with key combinations Shift+F1...F12
Commands /? /help /me /here /clear /nick etc
3 Chat modes Here/Busy/Away with customizable messages
Ignore private messages/ all messages
Add to block list (message filtration)
Online Alerts
User info - (Mem/OS/Cpu/Ip/MacAddress/CompName)
Chat logs
Transparent icons when chat is not in front/hidden
Insert user name by pressing tab
Multilanguage support --> Curent : Lang: Eng,Ro,Swedish, Spanish, Polish , Slovak , Italian , Bulgarian , Danish, German ,Russian, Turkish, Ukrainian, Slovenian, Czech, Dansk, French, Latvian, Portuguese, Urdu, Dutch, Hungarian, Serbian; (i need more translations).

Win 98/Me/NT/2000/XP/2003

Skype
Instant Messenger

Skype is free Internet telephony that just works.
Skype is for calling other people on their computers or phones. Download Skype and start calling for free all over the world.

Our software’s quick and easy to get started with. Download, register, install, plug in your headset, speakers or USB phone and start calling your friends. The calls have excellent sound quality and are highly secure with end-to-end encryption. You don’t even need to configure your firewall or router or any other networking gear. It just, you know… works.

Win 2000/XP
Mac
Linux
Pocket PC