Spacilus is a Bayesian "spam filter" for Google searchs.
Everybody knows the problem: Among a typical list of search results you usually find a lot of entries that do not offer any real value towards your search request but consist of a bunch of links directing you to some shopping site or lure you to some website that might try to play all sorts of tricks (viruses, Trojans, dialers, etc.) on you..
Tools and Utilities
Product page: here