http://news.ycombinator.com/item?id=2262693 <- Many comments
http://news.ycombinator.com/item?id=2270294
* 1 point for each number
* 2 point for each letter
* 3 points for each symbol
* first of each class counts for five (caps count as a separate class)
"your password score is 32 points, which places you in the top 10 percent. User bschnier is ahead of you by 10 points."