My proxy website was taken down by myself 2 weeks ago. Now the most traffic dissipated I putted it back online. I had to take it down because it was eating up all BW. In the time I parked the domain at sedo I earned € 7,-. This is not bad at all. The traffic is low again so I can run the proxy again and yesterday it earned me more than $ 1,- again. This is just a really nice extra income and I don’t do anything for it. No advertisements or creating buzz.
If you have good hosting and you have room for a proxy. Just put one online and looks how it goes, if its eating to much BW, get it down and park it for a while. It is not time consuming and everybody can do it