Marketing wiz Seth Godin and a few friends have launched Squidoo, a site for "lensmasters". As best I can tell, Squidoo combines a number of well polished Web authoring techniques into a nice package that allows people to easily develop lenses, a.k.a. rubrics or precis, on specific topics. Toss in LensRank, a ranking mechanism of unknown origin at least to those of us not enrolled in Squidu, a clear focus on what people are supposed to do, along with the potential for lensmasters to receive AdSense revenue, and you've got an evolutionary step in web authoring past blogging.
For those who've got a lot to say, or bleeding edge types, they're probably better off just doing a good job maintaining a focused weblog+wiki combo. But for time constrained people who just want to cash in on their expertise Squidoo might be the way to go. I'm interested to see the "hundreds upon hundres of modules" advertised in the FAQ. Why the need for so many lens building blocks and how does a small company build so many?