I've been using a few of our new services lately and can't help but recommend a few of my favorites. they are available in our 'sandbox area' - (the place where you can play with stuff before it grows up and gets released) located here: http://sandbox.msn.com/

Top Picks right now: 

Desktop Search - if you have lots of email, documents, photos, etc and don't always file them in the most organized way then this is going to be a huge asset for you. It has become an essential tool and time saver on my end.  

Start.com - a clean elegant new interface. I've brought in some of my favorite RSS feeds into the front page and i love it.

TerraService - this rocks pure and simple. type in your address and watch it go. So easy for those of us who like the visuals. AMAZED at the speed. Imagine the possibilities.

Check them out for yourself!