Visawiki.org:OpenID

With OpenID you don't have to create new accounts (and passwords) all over the web. You can simply use one OpenID account. You can use it for logging into Visawiki by entering the URL of your OpenID and then you will be taken to your OpenID provider. This way you don't have to come up with yet another password.

Common OpenID providers

 * Yahoo!
 * Google
 * MyOpenID