The other day I read about mplayit Android Arcade on TechCrunch. Living inside of Facebook, mplayit helps Facebook users discover Android applications.  Leana Rao explained how the site works:

“Once you start clicking on various app and downloading apps, Mplayit will begin to recommend apps to you based on your behavior on the site. And you can share apps on Facebook and Twitter. The Facebook page also shows the activity that’s taking place in other app marketplaces, such as Apple’s App Store or the Android Market, to show users what apps are receiving the most downloads, reviews and more. Users will also be able to see the “apptivity” within their social network, so they can clearly see what apps their friends and family are most interested in.“

Of course I have become more of a fan since they included ShopSavvy as their number one featured application (as seen below):