I just discovered Yahoo’s Site Explorer which was apparently released in September 2005. The tool allows you to see which pages of a site are currently indexed by Yahoo and the inlinks to a particular page. For example, I can see that Yahoo currently has around 1400 URLs indexed from my ODU website, and there are 19 inlinks pointing to the Warrick page. There is an API for accessing the service so page scraping is unnecessary. Now if only we can get Google to provide a similar service!