Chrome: Google's chat feature is useful for sending quick IMs and starting video chat sessions, but you can only view it when you're on a Google page like Gmail. Google has released an official Chrome extension that detaches it from your browser, allowing you to view it no matter what web page you're viewing. More »

Chrome: Google's Talk web interface is nice, but annoyingly confined to your Gmail tab. Gtalklet puts a little Gtalk box on any site you want, so you don't have to switch back and forth between tabs just to chat. More »