Amazon's new search engine --
Wow. At first glance, A9 is pretty darn cool. A little intrusive, perhaps, in that you have to register to access some of the niftiest features (like the ability to store notes you jot down about sites you visit), but the organization and layout is really handy. I never thought I'd encounter a decent alternative to Google, but I'm going to have to spend a little time with this! (They also have an incentive plan; a teeny tiny discount on Amazon shopping for registered users of A9.)