For what it's worth...

I implemented the web filtering solution at the rather large corporation where I work, so I've got quite a bit of experience with them. You can generally get around any category-based web filter by using a web proxy. Since web proxies include translation sites (like babelfish) it is unlikely that RoadRunner has blocked these. On the other hand, if they're using some sort of active content-based filter that wouldn't work--but since it's rather difficult to imagine what sort of keywords would indicate "controversy", I doubt they're doing that.

This seems very odd to me. What would make an ISP decide to block its users from wide swaths of the web? It seems like that would serve only to give advantage to their competitors.

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