YouTube music player

"uListen Plays Just YouTube Audio in the Background While You Multitask" http://feedly.com/k/1chj3ik

Keep screen awake by app

http://lifehacker.com/stay-alive-keeps-your-screen-awake-on-a-per-app-basis-1450639011

Card reader

"Review: Meenova micro SD card reader for Android devices [VIDEO]" http://feedly.com/k/1aAKYmD

Malware

"Malwarebytes for Android Kills Malware, Protects Your Privacy Too" http://feedly.com/k/1h0cWOZ