Although I prefer to sign my electronic communications with a digital signature, I also value anonymity when I surf the web (and I'm not the only one). In the past I've sporadically used services like Anonymizer, but recently I discovered something better: Tor. Tor grew out of Navy research on onion routing (though it now uses incremental path-building) and, based on my research so far, I think it's a pretty solid approach to anonymous browsing. It does slow down the web experience, but then I'm not particularly in a big hurry.