I am pleased with Microsoft's revision of MSN Live Search to the recently-renamed BING. The main search page has interesting daily images with short facts, and I unwittingly find myself spending 15-20 minutes at a time, reading about things that are completely unrelated to the topic that warranted my initial visit... LEARNING IS GREAT.
Also, the other really neat thing about BING are the result pages. The layout is very simple and intuitive, but the biggest improvment is the little page summary displayed on hover, which is found on the right side of each result. It displays a summary of the page content and extracts phone numbers, email and postal addresses.
It also displays your search history on the far right side. Kinda neat as well.
It's not a HUGE leap in search technology, but I like it overall. And the name is an improvement over the previous name (MSN Live Search).
Bottom line: I like it.