Yahoo! Mindset is the latest public beta from the Yahoo labs and it's great!

Yahoo says, it applies a new twist on search that uses machine learning technology to give you a choice: View Yahoo! Search results sorted according to whether they are more commercial or more informational (i.e., from academic, non-commercial, or research-oriented sources).

That means you have a slider to twist around your mindset between 100% shopping and 100% research... and the difference in results are dramatic!

Check e.g. "DVD Recorder" brings for shopping sites big authority sites like Buy.com, Overstock, Gateway, etc.etc and when you shift to research the first match is of course Wikipedia, followed by some other full content sites...

Very impressing.... and while Google takes down some features, Yahoo adds some...