Kippt is built for professionals who work on the web and depend on their knowledge. Kippt is designed to be your personal library of stuff you find on the internet. Unlike most other private bookmarking services, Kippt lets you save a variety of media types and presents it in an appropriate format.
The pro version ($25/year) turns off ads and provides full text search.
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Pro Variety of media formats
Videos, dribble shots, github repos, speakerdeck presentation, and more formats are constantly being added.
Pro Fantastic API
They have done a great job to make everything accessible to an advanced user, whether they want to just make a small script or a robust application.