Banlist.nl
"Banlist.nl is currenly free, but to keep it free (read: to keep it going in the first place), we need donations. We are growing rapidly: We are currently at about 132925 users, and each day more than 300 people sign in! The bandwith this program takes is pretty big, and the serverload is huge.
So... Donations (in any amount) are more than welcome! You can donate through PayPal".