Chatroll!

Lime Talk is an online application that allows you to easily embed a chat widget onto your site. In a couple of minutes you can communicate with your website visitors and increase your sales and provide better customer support.

lightIRC is a fast, free, Flash-based IRC Client. It supports webcams with an extension! Embed it into your website with a couple of clicks!

Stryng client messaging platform strings messaging, audio, video, screen-sharing and collaborative moments into one single, continuous thread so that companies can communicate over time with their clients in the most personal, convenient and productive way possible.

Linkinus 2 provides a rich, social IRC experience; featuring embedded media, short URL expansion, message starring, combined chats, emoticons, and much more!

Live Chat by Social Intents is the easiest way to boost sales and improve customer service. Unlike other live chat solutions, our inexpensive pricing plans support unlimited agents and seats on all premium plans where as the competition charges up to $36 per additional agent seat.

Firechat is a simple, extensible chat widget powered by Firebase .

LibraryH3lp provides a flexible, affordable chat software for libraries and non-profits spanning web, mobile, and IM.

My Customer Cloud provides a live chat solution complete with API, allowing you to completely customize your chat service or build your own scalable, reliable real-time chat apps. Our flexible chat platform is based upon the XMPP standard and seamlessly integrates a variety of customer communication channels including website, SMS, instant messaging networks, and Twitter.

Zoho Livedesk is a realtime support system for chatting with customers around the world giving assistance to customers around the world.