http://spyced.blogspot.com/2009/01/all-you-ever-wanted-to-kn...
and also related: murmurhash, a hash which is well-suited for bloom filters and that is much faster than SHA-1
http://murmurhash.googlepages.com/
http://www.seas.upenn.edu/~zives/cis650/papers/r-star.pdf
http://spyced.blogspot.com/2009/01/all-you-ever-wanted-to-kn...
and also related: murmurhash, a hash which is well-suited for bloom filters and that is much faster than SHA-1
http://murmurhash.googlepages.com/