MediaFire compare (Android)

DoubleTwist is the best music player we've seen on Android. And with the premium AirSync upgrade (highly recommended), it makes it a snap to sync and transfer music between your mobile device and your desktop.

Despite its minor shortcomings, Google Drive is a must-have download, as it does an excellent job of integrating cloud storage and file-syncing with Google Docs functionality.

PushBullet is the easiest way to get files, links, notes, lists, and addresses from your desktop computer to your Android device.

If you're looking for a full-featured note-taking app that syncs across all platforms -- or just an easy way to keep track of your digital odds and ends -- Evernote is the best I've seen for Android.