I've been playing around with http://www.live.com and I've gotta say it's pretty neat.

 

The search engine is very slick with the option to add more or less detail to the results, save searches as macros and use macros published by others.

 

I've added some gadgets that let me see my hotmail, the weather, store favourites and do unit conversions.

 

I'd like more flexibility in the page layout but it's otherwise pretty fun.  As more gadgets come along, I look forward to trying them out.