I've been playing with tag clouds at the gorgeous wordle.net. For thems as doesn't know, a Tag Cloud is a visual representation of word frequencies within a body of text. More frequent words are shown larger. Wordle lets you monkey around with layout, colour, etc.
Here's what it makes of Shakespeare's sonnets. All 154 of them:
NWA's seminal 'Straight Outta Compton' album: