"dropbox.com" is ranked Good and "http://www.dropbox.com http://www.dropbox.com is ranked Great. I found this amusing, but as it says in the article, there are

"dropbox.com" is ranked Good and "http://www.dropbox.com http://www.dropbox.com is ranked Great. I found this amusing, but as it says in the article, there are very many common patterns which it doesn't check and so overestimates the entropy of passwords using those patterns.