I made some pretty good beer money running one of those FTP sites by making people download Bonzai buddy for a password. I feel a bit bad for advancing that purple ape, but at least I could increase my sysadmin skills on something that didn't matter.
+1. I was running an FTP server on one of the few multi-honed T3 connections (late 90's) in our city. OTH sent me a ton of traffic, which also included RIAA scouts. I almost lost my job after they sent a C&D to our IT department; I was ~16 years old at the time and was forgiven.