Google has got it down. To verify to google that you're the owner of a web site so that you can view stats and do whatever, you either put a special META tag into your index page, or you upload a special file that is something like 239409f0jijf2sdf8.html. They assume that if you can upload files or make changes, then you must be the person you claim to be.
So I started signing up with Technorati, so I could do cool things like have them tell me how much money my blog is worth ($100? $200?). But in order to complete the process they want my blog user name and password? I don't think so. I don't care what kind of privacy policy you have. Although I suppose I could always change it right after I claim it (would that then lock me out of anything on technorati?). So I left in a huff. 
What kind of name is technorati anyway? It's amazing what we get used to. Yahoo? Google? If I had an awesome "can't lose" product and I had to create a company for it, I'd name it Schmigeggy, just to see if it would become a household name. "I was impressed to see my site listed on page 1 on Schmigeggy for a query on widgets." 