Hi. I have a question - since PR is a Google generated concept, does Yahoo consider it in its algorythm for ranking websites or does it have its own similar measurement of trust/importance etc?
<sarcasm> Hmmm...it's called Google PageRank so let me see...oh yeah Yahoo must use it </sarcasm> Plus you sorta answered your question on your own:
Yahoo! and Google for me, has a different algorithm on valuing websites. As far i know they Yahoo didn't release like Google PR. For me they Yahoo! is more valuing on the contents.
Yahoo does consider a site's backlinks for ranking purposes, especially if they are very high quality and related links.
Yahoo has different criteria in evaluating backlinks so I think sites that have high PR have no bear on yahoo...what's important to them is the quality and relevancy of the backlinks.