Microsoft Watch has created a Web ranking tool which brings together various publicly-available ways of assessing the popularity of a given page – Google’s PageRank, Alexa’s traffic rank and a count of total external backlinks from Yahoo (which reports these much better than Google apparently).
None of these are very precise measures but they are the only ones available for sites that are not big enough to turn up in commercial surveys of web popularity as far as I know – anyone got any better ones? Come to that are there any easy ways to get at some of the site popularity data produced by people like “Comscore”:http://www.comscore.com/ without paying them commercial rates?