If you need cool theme for your phone or maybe a polyphonic ringtone or an entertaining game for your mobile phone, visit to ZEDGE.NET. There is huge free mobile related stuff (wallpapers, themes, ringtones, games, videos, picture messages) on their public gallery.
ZEDGE.NET is the most popular mobile social  software today. Zedge.net is one of the largest international mobile phone communities in the world with over 4 million registered members and over 140 million monthly page impressions. The Adbrite links is represented on all pages. Zedge offers unique mobile phone customization tools and services, large public galleries, social networking, information databases and discussion forums.
I use both Adsense and Adbrite and i can say that adbrite is also a good source of income but not as good as adsense.;:.