Attention residents of the UK, Canada, and Australia: Google would like to ask you some questions. In exchange you will be paid exactly one pittance. Don't complain or they'll cut it to, like, 0.75 of a pittance. But hey, free money is free money. All you have to do is grab the newly updated Google Opinion Rewards app and wait patiently for Google to call your number.
Facebook's new Messenger beta program is already making great strides with a jump to v4.0. You'll have to be in the beta program to get access, but it's quick to set up. Once opted in, you'll get to check out a few interesting new features in Facebook's chat app.
It's easy to forget that Amazon has cloud storage products on Android now that Google has started pushing the envelope with Drive and Play Music. Amazon does offer its own photo backup app connected to a free 5GB Cloud Drive block. The app wasn't great, but now that's being addressed with a significant update.
Google added native screen recording functionality in Android 4.4, but it only works over ADB and there's no audio output. Third-party developers have been working on ways to expand the usability of the native functionality, but the root only app SCR might be the closest to implementing sound and video perfectly after the most recent update.
In the new version, SCR gains support for experimental recording of internal audio with the video.