AppRecs - AppRecs sorts through reviews in the App Store and automatically helps you filter out inauthentic results.
Amazon Appstore - The Amazon Appstore is a place to purchase and download apps for your Android device.
Cydia - An alternative app store for jailbroken devices.
GetJar - Discover and play paid apps and games for free.
Fnd - Browse Apple App Store and iTunes on the Web
AndroidPIT - Android news, apps, reviews, tips, hardware comparisons and forum