I recently stumbled over another source of income. My friend Tonya told me that Wal-Mart had an affiliate program with which to monetize your blog. I went to investigate, and to enroll in Wal-Mart's affiliate program, you first have to enroll in LinkShare, which is a meeting place for many, many affiliate programs, and they organize them for you! You even can become an affiliate for them; take note of the link on the right!
I have no idea of the income potential; some of the programs offer as much as a 20% payout (flower.com; link on this blog) from your referrals! I believe it will make me feel like I have much more control over my blog advertisement when I get to pick the programs, instead of google or adsense picking them. We'll see!