"Typical of the new breed of 'bloggerpreneurs' is Markos Moulitsas Zuniga, who runs Daily Kos, a liberal political blog. Mr Moulitsas says he initially wanted to keep his blog ad-free, as a way of preserving his independence. But in December, he had to buy new server computers to keep up with growing traffic, and he started taking ads to pay the bills. Business was so good that in three months he was able to double his ad rates. Now, he's bringing in $4,000 a month," reports the Wall Street Journal (paid subscription required).
"Another popular political blog, TalkingPointsMemo (www.talkingpointsmemo.com), also began taking ads; now, it brings in more than $5,000 a month, enough for head blogger Joshua Marshall to be able to hire a part-time assistant to help him do research."
A company called Pressflex runs a Blogads service to connect advertisers with a network of bloggers, says the Journal: "'They said nobody would want to advertise on personal diaries. Even my wife thought I was crazy,' recalls Henry Copeland, who founded the company in 2002. Now, he has three programmers working for him in Hungary."
The article also counts Slashdot (slashdot.org) and Drudge Report (www.drudgereport.com) as blogs.
