Well, I went ahead and created a Google AdWords campaign for Less Than Slash, just to test the water. So if you search for "XHTML" on Google (among a few other key phrases), you will see an ad for Less Than Slash.
There isn't a link to the appropriate search in this article because each click actually costs money - between $0.05 and $0.10. There is a cap, so only so many clicks can happen per day before the ad shuts off. This should work out alright because Google reports how many clicks they expect you to get per day, and this number times the cost per click is below my daily budget. So anyway, if you go there, just look at the pretty ad, but don't click on it, since you already know where to go to get LTS.