Helpful web sites for computerized selection.
Gnooks is a fun way to find other books your patrons might like.
Whichbook will pinpoint a perfect book for your readers by weighting characteristics such as funny/sad, sex/no sex, easy/demanding etc..
Reader's Robot from the Thompson Nicola Regional District Library System in Kamloops, British Columbia.
Find Me An Author! Pick books based on the author's picture
BiblioTravel - Pick books based on locale!
TuneGlue Makes artist suggestions based on bands you already like.
So far, I haven't found any cool tools that will work for movies like the sites above offer.
Here are some lists instead:
New York Times Best 1,000 Movies Ever Made
Alternative Reel's Cult Movie List