Soashable - Web-based IM for AIM, MSN and Yahoo Networks | Size 4.9 Mb
Soashable is a new web-based multi-protocol messenger client. It currently supports AOL, MSN and Yahoo networks.
Demo
Soashable is a completely open-source (GPL) IM client, built on the Xmpp4Js (LGPL) XMPP library for Javascript. It communicates with an XMPP server using XEP-0124/XEP-0206 HTTP Binding, and provides end-user functionality comparable to Meebo (but is in no way affiliated with Meebo).
Download