Oh, I've been doing that for years.
To increase the size of the obstacle it represents, I once modified the command I am in the habit of using to open files for editing so that any request to open /etc/hosts got changed to a request to open the file containing my to-do list.
But the next time it wanted to go to one of the sites on my blocklist, it took my brain about 5 seconds to realize that if it requested the opening of /:/etc/hosts (the /: being a quoting convention in Emacs) rather than /etc/hosts, it could get around my obstacle.
Some small software changes have proved effective obstacles for months, but the above was not one of them.
I will continue to maintain a blocklist in /etc/hosts because it causes my brain to observe my policy on work and procrastination more than it would without it, but the reason I am involved in remote-monitoring experiments is because it is a more powerful anti-akrasia technique.
So we (Richard Hollerith and me) tried out my anti-akrasia idea. Actually we've been doing it for more than a week now. Turns out it works just like I thought it would: when you know an actual person is checking your screen at random intervals, and they will IM you whenever you start procrastinating online, and they expect the same from you... you become ashamed of procrastinating online. You get several "clean" hours every day, where you either do work or stay away from the computer - no willpower required. Magic.
Proofpic time! Once we both left our VNC windows open for a while, which resulted in this:
The idea isn't new. I first got it this winter, Alicorn and AdeleneDawner are apparently doing similar things unilaterally, and even Eliezer has been using a watcher while writing his book. I don't know anyone who tried the Orwellian mutual screen capture thing before, but I won't be surprised if a lot of people are already quietly practicing it.
Being watched for the first time didn't make me feel as vulnerable as you'd think, because, realistically, what can the other person glean from my monitor while I work? Random screenfuls of source code? Headings of emails? We don't realize how normal the little details of our lives would look to strangers. In the words of McSweeney's, "chances are, people will understand. Most people are pretty understanding." The experiment did feel weird at first, but it was the expected kind of weird - the feeling you should get when you're genuinely trying something new for the first time, rather than just rehashing. It feels normal now. In fact, I'm already ever-so-slightly worried about becoming dependent on remote monitoring for getting work done. You decide whether that's a good sign.
Passing the microphone to Richard now:
In conclusion, the technique seems to help me a lot, even though it's shifting my sleep pattern to somewhere in between Moscow and California. My current plan is to keep doing it as long as there are willing partners or until my akrasia dissolves by itself (unlikely). The offers I made to other LW users still stand. Richard is in talks with another prospective participant and would like more. We want this post to actually help people. Any questions are welcome.
UPDATE one month later: we're still doing it, and everyone's still welcome to join. Won't update again.