http://www.google-watch.org/scraper.html this Free SearchEngine which uses API infomation Can be an asset for Advanced SEO To fully understand Google SERPs Relevancy Algorithmic "Dances" It is helpful NOT ONLY TO SEE CURRENT RESULTS... - but - to be able to immediately search and compare PREVIOUS results... This tools is helpful for high-level-SEO
((very)old thread) The page on the google-watch site is 404 (dead link) but a service like that would be great. I am building a database tool tracking niches (monthly development), does anyone know of sites offering backlogs ?