I just read the 2006 interview with Jason Kottke, who quit his job in 2005 and started blogging full-time on his blog Kottke.org. What's interesting about Kottke is that like many bloggers he started his blog in 1998 just as way to keep track of everything online that interested him yet somehow he was able to gain a following and regular readership. when you visit kottke.org today it's really just a random assortment of regular blog entries, videos, music, pictures, and links much of it relating to science and the arts but there is no real central theme to his blog. I guess you could say what made Kottke popular is his sort of randomness.