Found this some days ago: [fastbot.de...] The results doesn't seem to come from their own database, I found no connect to other SEs. The results are delivered fast, the serps look good for my pages (:-)) and they are delivering data to metager. Regards, ismap
Fastbot several weeks ago delivered pure Google results. Now they're using something else, but I haven't found yet what results they are using now. Perhaps they're switching sources to make it more difficult for us to find out. BTW: A year ago they called themself a meta search engine.
Fastbot now delivers results to other meta engines like Metager and Apollo7; I hope they are clever enough to avoid a closed loop. ;-)
Just did some extra research: Fastbot is still a meta search engine which gets its data from Google and Altavista. The best way to find this out is to search for pages which show you your browser's user agent string as you visit them. So if a spider is visiting such a page, the spider's user agent is printed on that page.
The snippets that Fastbot shows then say that the visit came from an IP hosted by Google and the user agent was called GoogleBot.