Mommy blogs are big business these days. A recent Washington Post profile on ur-mommy blogger Heather Armstrong (a.k.a. Dooce) suggested that her site could be raking in up to 40 grand a month. While most mothers who blog are nowhere near as influential (and their sites nowhere near as lucrative), they take pride and satisfaction in the work they do, and the websites they maintain offer valuable community, a sense of connection to other parents, and occasionally a little pocket change.