Google have just released a new service called Google Keep. Think of it as Google's version of Evernote. This new service and app allows you to save anything and everything. It's just like a note taking app only more media based. You can save basic text notes and alike, but you can also take pictures, add captions...etc. It also has a neat feature which allows you to transcribe voice notes. You can colour code notes too which is a great way to categorise them.
As with any Google service, if they find it gets traction and has many active users they'll most likely develop and evolve it. They'll also probably bring it over to iOS too, which is something they've done with a lot of their services before.