Verizon DOES block port 80, and in my area, they are the only DSL provider. I don't know how many different DSL providers you have in your area. Also, it is against ANY isp's user policy to run a webserver, cable or dsl. I'm not really sure where you are getting your information from, but if yo uread the user policy on any ISP's site, it will tell you that you cannot run a server. Maybe in the future, you should research a little bit more.