Vidoop: An OpenID 2.0 service that lets you say goodbye to passwords and use images for authentication.

Vidoop can be seen as the 2.0 version of OpenID. It adopts the same operation mode as OpenID, but there is a slight difference in the user password verification process. Ordinary OpenID services, such as myOpenID, use character passwords for verification, whereas Vidoop uses a visual authentication method (picture-based).