Just supposing you were conceiving the perfect link building tool which searched for potential link partners. Would you choose to list the Google PageRank alongside the search results (i.e. each url for the potential search partner)? Note that each result may not necessarily be the page where the researcher's link would go, but if this fictitious tool displayed the PR for the homepage of the search result as well as the PR for the search result (for all results on the page e.g. 10 results, so all the pageranks could be seen at a glance), would this data be of any value? If you were developing it, would you perhaps choose to omit this data, so the user could assess the results just in terms of relevance? I'd be interested in hearing people's views.