I don't recall having an exact term for these, though, so I'll second the nomination put forth by Paul Lamere, who writes the blog Duke Listens: freakomendation.
He explains it a bit in Watching a new word spread through the blogosphere - Duke Listens!, but the term is almost self-explanatory, and therein lies its beauty.
Anyhow, if you think the suggestions you get from Amazon, Netflix, iTunes, et al. are wacky, check out some of the posts in his Freakomendations category.
Because you enjoyed F**k, you will need to see In The Womb (or it may just sit on top of your DVD player for 9 months).
I'm really not making these up.
Now playing on iTunes: Fantasia - Baby Makin' Hips