Nigel Osborne <kiwi3685@me.com> said: > a) the algorithms Google uses include hundred of different factors, all with > separate weightings applied and all affected by the actions of billions of web > users. > b) the algorithms are constantly reviewed and sometimes changed in significant > ways. This, for example, is why "meta tags" are no longer 'in vogue'. > c) the entire process is completely dynamic, and repeated every few > milliseconds. So a ranking of 3 now could potentially be 4, 5 or even a whole > page lower ten minutes later. That's not a common outcome, but it can happen. Another thing I've noticed more than once is that if a search produces nothing one day, repeating the search a day or two later may give something useful, as if the first search had primed it to look for that thing. This may well be exactly what happens! Also - if you want something obscure, search the books as well as the web. Peter Alefounder.