I'm looking for a good, free, preferrably open source, IRC client to be embedded in a web page.
The obvious requirements of supporting most browsers, if requiering a plug-in it should be a plug-in that is allready widley deployed and it should not put too much strain on the webserver serving the page.
Not really a programming question, but Mibbit is quite capable, I've used it for a few different applications, it's always worked well.
Note that it will work best if your channel is on one of the networks listed here that support WEBIRC.