Some of the projects that use MD5 as the default method for storing user passwords include WordPress, osCommerce, SuiteCRM, miniBB, SugarCRM, CMS Made Simple, MantisBT, Phorum, Observium, and X3cms.
If you're using an md5 password from /etc/shadow, you shouldn't be. Those md5 hashes are seeded, which is why they're different every time. Instead, try echo'ing your password through md5sum (or md5 ...
A search for “Hash Hunters” turns up marijuana-themed t-shirts for sale. It also brings up a password-cracking outsourcing service, payable in bitcoin. Fearing data breaches, Web services often store ...