AOL Instant Messenger: aim:goaim?screenname=#screenname#
Google Talk: Nothing currently available
MSN/Windows Live IM: msnim:chat?contact=#screenname#
Yahoo! Instant Messanger: ymsgr:sendim?#screenname#
Thanks to Jaspreet I was able to figure out how to link to Google Talk, and have written a follow-up article you can read here.
|Google Talk Hyperlink (Friday, July 25, 2008 12:04:14 PM)|
Tags: aim, development, google talk, hyperlink, instant messenger, link, messenger, msn, skype, url, windows live, yahoo