Step 1: Find five completely random blogs, and read them daily for a month. After thirty days, you will absolutely dread your self-imposed requirement to read all that dreck. Any blog you create will most likely be on par with what you've been reading. Don't put anyone through that.
(another fine wikiHow)
Update: Link fixed. What's so evil about kinkos, anyway? I'd google it, but apparently I'd just end up at Janna's blog.