Interact with GTalk from webpage, use gtalk: commands. gtalk: command list <a href="gtalk:chat?jid=[USERNAME]">Contact me in GTalk</a> -- For Chat <a href="gtalk:call?jid=[USERNAME]">Voice Chat</a>  -- For voice chat Replace [USERNAME] with you gmail ID. and end user must install GTalk. Thanks, Naga Harish. Get more IM's details here http://shareourideas.wordpress.com/tag/embed-ims-in-website/