There are a lot of companies that are scraping Google quite successfully. Many of these are for 'rank checking' services that provide ranking data for certain k

There are a lot of companies that are scraping Google quite successfully. Many of these are for 'rank checking' services that provide ranking data for certain keywords over time; these are heavily used by SEO and marketing agencies. The two that jump to mind are Authority Labs and SEOmoz. I guess: a shed load of proxies. :)