Hey Mitch,
It's funny how MSN keeps that tool a speak easy thing, though technically it is now the Live Webmaster tools (MSN tools redirect you there now). Google's webmaster central is by far the best of the lot.
Here are all three of them:
www.google.com/webmasters/tools/http://webmaster.live.com/http://siteexplorer.search.yahoo.com/mysitesIts not worth your time submitting your sites this way unless you accompany it with a robots.txt file and a sitemap.
There are a lot of other great services offered by these companies as well. I especially like Microsofts ad Central, as it is one of the most unique marketing research resources I've ever seen.
