If you're disappointed with Google Reader being killed off, you'll probably be looking for a worthy alternative. Feedly has been one of my favourites ever since their huge redesign and overhaul. And to help Google Reader users find an alternative they've made it super easy.
Simply make an account on Feedly by signing in with your Google account. It'll then pull all of your feeds and store them on Feedly, so once Google Reader is killed on 1st of July all your feeds will be available on Feedly. It's literally as simple as that.
All those feeds will also be available on the mobile apps, whether it be on Android or iOS.