UEBA is a blog aggregator and social voting site.
Looking for some new Portuguese-language blogs, sites, news, funny videos or other generally entertaining ways to waste time? UEBA’s the place.
Basically, UEBA works like Digg or del.icio.us insofar as it is a place that users can bookmark webpages/site and then vote on them. The end effect is one page with a whole bunch of cool links that gets updated constantly.
Examples of the kinds of things you might find on UEBA include a movable toilet, a human helicopter, the new changes to GMail, and even a hot new online racing game.
Basically UEBA is a huge waste of time in the best sense, and since all the sites it links to are in Portuguese, you can even consider your procrastination education.