Raindrop.io
Freemium
Raindrop.io syncs bookmarks into the cloud and makes them beautiful as well as easy to search.
Pinry
Open Source
Pinry is a tiling image board system for people who want to save, tag, and share images, videos and webpages.
lumio
Free
lumio is an online content organizing platform.
Compare Google +1 with alternatives
Compare Raindrop.io and Google +1 and decide which is most suitable for you.