Noovo: Tumblr on Steroids
Noovo is a full-on lifestreaming / blogging / bookmarking / everything (except social network) app that launched out of private beta last week. It calls itself a "social discovery engine"; and recommendations technology is part of the overall package. The company Noovo is based in Slovenia, has been around for a long time and counts Esther Dyson amongst its investors. It took us a while to grok the service, but essentially Noovo is a content sharing application similar to Tumblr - but a lot more full-featured. In particular, as well as enabling you to aggregate and add content - as Tumblr does - Noovo lets you discover new content via automated recommendations.
In a tweet, the Noovo team told us that the app uses "state-of-the art deep graph mining and text extraction to recommend relevant content to users." A recent blog post explained further that Noovo uses "advanced algorithms to filter out the noise for you and recommends you the most relevant stories based on who your influencers are".

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