Passphrase Generator

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

no frightening bucket crochetted any normal river
no rundown sister beamed the measly straw
my automatic behavior harassed any muddy quarter
no determined circle wasted some sane actor
its mundane bird cross-examined some upset alarm
her sour invention sneaked my wicked hope
any electric star noted my novel committee

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

jamfalterredcrushingobservation
parkcroakedgranularroot
bagmultipliedinconsequentialcamera
tigerhandedexcitedfog
comparisonannouncedsquigglyexample
blissfulyodeleddecisivetrousers
malereversedpuzzleddistance