Everything GMail

GMail Wiki - Its a treasure trove of information for all you GMail users out there.Its got Tools And Utilities,Tips And Tricks and so much more.Just visit the site and save me the trouble of explaining what the site is all about.
LibGMailer - "GMailer (libgmailer) is a PHP library/class that helps you accessing/checking/using GMail through PHP scripts."Found this software via Matt Read.