Im sure RoadRunner DSL isnt the only ISP that will do this, however I stumbled across them as being particularly dumb. They list all the users on a home page and let you browse the personal sites, as well as gather assumed login names etc. simply google “@ .rr.com” to get regional areas such as HVC for Hudson Valley. then attach some data to the site and you get every home page there, that includes pages where people upload files, but think no one can see them but they nicely let you index browse. HTML 1.0 where they password stuff but you have no time out and retry is not delay. more importantly the google site:xxx.com trick where you can just search everyone for juicy data. here is some info to get you kicked off for about 1 hour of surfing fun. its like having a back door into angel fire site, all that blinking text fun.

http://home.nycap.rr.com/

http://home.hvc.rr.com/

http://home.cfl.rr.com/

 needless to say browse with firefox, who knows whats out there.