Raindrop.io - All your articles, photos, video & content from web & apps in one place.
skribbl - Word guessing based on drawing.
Bookmark OS - Bookmark OS is like Mac or Windows optimized for bookmarks.
LetsDraw.It - Guess and Draw, Drawing Battle, Pictionary, Copy picture - online drawing games where you can compare your skill with others.
Linker - Cloud based bookmark manager
gartic.io - Draw, guess, and win!