You can list authorized apps and revoke authorization from Google's accounts page. Here's the direct link: https://accounts.google.com/b/0/IssuedAuthSubTokens?

You can list authorized apps and revoke authorization from Google's accounts page. Here's the direct link: https://accounts.google.com/b/0/IssuedAuthSubTokens?hl=en https://accounts.google.com/b/0/IssuedAuthSubTokens?hl=en or go here: https://www.google.com/settings/ https://www.google.com/settings/ and click "Authorizing applications & sites"