What are some alternatives?
weheartit.com - We Heart It lets you create an online album (a heart) with your favorite images and videos.
Pinterest - Pinterest is a visual discovery tool that you can use to find ideas for all your projects and interests.
Pinry - Pinry is a private, self-hosted, Pinterest inspired by Wookmark and built on top of Django.
vi.sualize.us - A social bookmarking website for visual contents — vi.sualize.
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
Dragdis - Drag & drop anything anywhere.