Here is an interesting article on Craigslist. Quoting from the piece:

Online disruptors like Monster.com and Yahoo's HotJobs divert money from papers into their own pockets; Craigslist sucks money out of the system entirely

Which is not entirely true, but it's refreshing to see a startup not rushing to be aquired by brand-name companies or go IPO. The flipside (and there's always a flipside to a story) is that there's no competition to drive better products out of them. Good competition is necessary to drive innovation, and with what can only be described as "We don't care to compete, and we don't care about money" spirit. While it's great that they just do their thing, competitive spirit is probably the thing that makes startups better innovators then the big elephants.

Give it a read.