Passphrase Generator

Entropy: 57.6 bits, equivalent to a 9 characters purely random alpha-numeric password
See http://xkcd.com/936/

their energetic science planned the rotten brick
any offensive clouds groaned his functional lift
your angelic zipper fastenned one antique man
your nautical muscle planned the distorted bike
any icky milk stamped your triangular dust
no first slope marred any odd grandfather
her pale locket concerned some massive elbow

Entropy: 41.3 bits, equivalent to a 6 characters purely random alpha-numeric password

tendencyslappedvividearth
waryrhymedworstsink
deafeningcurseddistinctcomb
sneakywhisperredrealpet
houses marveledtoughtiger
ediblepostedeverycrook
polishedarrivedneatfold