If you’ve been using Google+ for photo sharing, you need to know that it’s shutting down on August 1, 2015:
… Google Photos (note the lack of +) — as in the excellent, unlimited free photo host that Google launched back in May — will live on.
The shutdown of Google+ Photos will start on August 1. According to Google, the Android version will go first; shortly thereafter, the web and iOS versions will go dark.
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Source: Google+ Photos Is Shutting Down On August 1st | TechCrunch
More info on Google Photos: http://www.google.com/photos/about/