Social recommendation and personalization platform Plista, one of the companies in this year’s TechCrunch50 DemoPit, has secured an undisclosed amount of funding from Swiss Draper Investment Company, which took a minority stake in the Berlin-based company.

TechCrunch UK reviewed the service after seeing it at work at the recent Web 2.0 Expo Europe in Berlin and called Plista basically a widget, API integration or Firefox browser plug-in which recommends content to users as they browse, based on collaborative filtering without the need for site cooperation.

Its Greasemonkey script places a ratings box on each element of a site and rates it to your preferences. The recommendation engine works across sites, so it’ll recommend content on one site based on what you told it about content you liked on another. Plista also features a social network component which enables you to share your recommendations and find and follow people with similar tastes.

Similar services include Strands, Outbrain, Aggregate Knowledge and Criteo.

(Hat tip to CenterNetworks)

http://vimeo.com/moogaloop.swf?clip_id=2240624&server=vimeo.com&show_title=1&show_byline=1&show_portrait=0&color=&fullscreen=1
plista tutorial from Dominik Matyka on Vimeo.