May I recommend going over to the blogging forum and looking around? We have several members who do great writer blogs, health blogs, general topic blogs - and some, DTng, for example, who do rather well using blogging as an adjunct to other work, for pay. Holly Lisle (not to imply she's a member here, because I don't know that she is, it's just another example) uses her blog very well in her writing oriented business. A lot of blogs are fluff, but cream does rise to the top.
I love you Shadow Ferret, but your post was a bit cruel. I hope it was tongue in cheek. Blogging is more than just a meaningless exercise for a lot of people.