Well, it's easier for user to register a page in an usual manner, why? Well, because they have been doing this all the time. In a startup I'm working on, we forced user to use a Google Account to login, then I ran a usability test on my mom, her first questions were: what's a Google Account? Where is the registration form?
Don't force people to user any third party login, instead, make them have a choice to sync their openid or facebook accounts to have extra features like facebook notifications, GCalendar and GDocs sync, etc.
Registering to an app must be easy, fast and intuitive. The use of third party authentication service must be unobtrusive, and should not limit your application, just improve it.
Don't force people to user any third party login, instead, make them have a choice to sync their openid or facebook accounts to have extra features like facebook notifications, GCalendar and GDocs sync, etc.
Registering to an app must be easy, fast and intuitive. The use of third party authentication service must be unobtrusive, and should not limit your application, just improve it.