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Instant messaging & Group Chat built for business. Features include: - Private Group Chat - Instant Messaging (one-on-one) - Persistent Searchable Chat History for Room & IM - Video Chat …

HipChat is an instant messaging service designed for companies and teams. It has persistent chat rooms, one-to-one chat, searchable chat history, file sharing via drag & drop and clipboard, inline …

Cryptocat lets you instantly set up secure conversations. It's an open source encrypted, private alternative to other services such as Facebook chat. Messages are encrypted inside your own browser using...

Flowdock is a beautiful group chat. You can upload files, paste blocks of text, use #hashtags to make notes or create lists and mention others’ names to get their attention. …

co-meeting is a text-based group discussion tool. This live-typing chat tool lets you have a conversation that can also deliver the “atmosphere” which was impossible to share with your participants …

Jaconda is designed as an easy-to-use company chat. It offers persistent chat rooms with searchable history, file sharing, guest access and more. It integrates with Jabber/Gtalk and can be used …

AnybodyOutThere helps individual users easily find other like-minded people to chat without first having to search through numerous forums and endless chatroom wastelands. The site connects users based on their …

Campfire is a simple web-based real-time group chat tool for business. It makes real-time communication with 2-60 people as simple as visisting a web page. It’s elegant, easy, and web-based. …

Your World of Text is an infinite piece of paper that anyone can write on. The changes made by other people appear live on your screen.

Disposable online chat. With anologue you can quickly and easily engage in an anonymous (or not) linear dialogue with any number of people (within reason). No accounts. No installations.

MathIM is an online chat provider with built-in LaTeX support (that is, you can use LaTeX right away for providing help with math problems). It can also be used for …

Opensource Social Group Chat written in Ruby On Rails EchoWaves is a Collaboration Tool and a Social Network. EchoWaves is as powerful as CampFire, and as simple to use as …

Open Source private chat server. Your own private Chat server in minutes, plus additional features. No credit card required. A fast, secure and stable solution based on Rails.

Free Group / Team chat with persistent history.

OhYouGotMe! a great place to connect with each others geographically through Google map

YoFrog is mobile group chat with private rooms of friends. When texting is too limited and tweeting too public, make a space for you and your friends.

Chat, SMS, and share all of your files all in one place. Perzo is the secure and more productive solution to your communication needs. Perzo is a secure communication application …