[barrkel]

I use ssh -D to cheap VPSes, and dynamically use the proxy based on Firefox's FoxyProxy to route different URL requests through different networks.

Handy for anything from region locked websites (extremely common in streaming video) to local censorship (increasingly common in Western countries, especially around torrents).

Having to set up individual port mappings for arbitrary URLs (whose actual hosts may change on an arbitrary basis) is not a viable alternative, IMO.

Maybe I misunderstood you though. Is there an easier alternative approach that makes ssh -D superfluous?