[memo]Social Bookmark Services

Social Bookmark Services Pinboard: social bookmarking for introverts
http://pinboard.in/

Delicious.com – Discover Yourself!
http://delicious.com/

はてなブックマーク
http://b.hatena.ne.jp/

Diigo – Web Highlighter and Sticky Notes, Online Bookmarking and Annotation, Personal Learning Network.
http://www.diigo.com/

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