Alternative ways of monetizing Android Application

I was looking for solution to integrate payment within android application.
The only alternative I could find is Google Money. I am not fan of Android Market and wasn't goind to use it.
Do you know any mobile payment for Android out there?
I came accross this http://www.paygol.com/android/implementation

Regards
Ghygi

Never heard of paygol before. Scoreloop now has in-game purchases available though, http://www.scoreloop.com/developers/freemium/