Credit:
I'm mildly whelmed by Yahoo Tech. Taking a more than a little inspiration from existing social software and Web 2.0 design, it's a fairly attractive site (although admittedly a little cluttered - changing the screen width makes it far more managable). It comes complete with tagging, rating, saved items and - yes! - rounded corners.
The site aggregates content from Yahoo Shopping, Yahoo Answers and content providers like Consumer Reports. They're also employing a team of "advisors" to write blogs on tech topics. Unfortunately, the content isn't that great. Engadget and Gizmodo provide much more depth and insight, even if they're not so accessible to the mainstream. Personally, I think there's an edge model that could work here.