Happens to all the good ones. A website, unlike television or other media formats, gets more expensive as popularity increases. Dooce.com, probably one of the most popular blogs is contemplating ways to make revenue to pay for her bandwidth and supplement income. And her site's mostly text. I think she has a readership near that of Drudge! It's amazing. Should be interesting to see what evolves. I hope it doesn't go fee-only. It's such a fun read.