Just found this services http://www.prsearch.net/
for Google Page Rank, Google position & Yahoo position search and Link Popularity search. I think it's very interesting and unique service. What do you think about, guys?

this isn't bad, it's not innovative, but it's nice having all those features together in one place.

Its pretty good and helpful

quite an interesting site, but the main PR search function doesn't work properly...

If your search results come to more than one page, every page still displays the results from the first page!