Check out this short Q&A with Craigslist CEO Jim Buckmaster in Fortune.
The Web site, which uses simple text links, has been grown tremendously and now reaches 50 countries through 450 sites.
The questions in the article came from readers rather than the reporter.
Here's a good one for entrepreneurs to ponder:
Q: At some point, doesn't Craigslist have to be more aggressive about scaling revenues? I understand you're small, nimble and profitable, but your business is pretty easily duplicated. Or do you think you can sustain your business based on user loyalty?
--Aaron Letscher, New York City
A: Financial metrics aren't something we focus on; they're a pleasant side effect if we manage to do a good job by our users. We track page views to measure the usage of the site. We also look at the number of thank-you notes from users who have found their entire lives on our site -- from spouse to house, job, furnishings, cat, dog, friends and a social life.