The new image gallery functionality in Wordpress 2.5 should be incredibly useful. Christina will definitely use it on our married life blog.
I'm thinking about doing some advertising for BevoSports and this is a very useful article on Google AdWords.
His top money earners on his websites include Chitika, AdSense, Text Link Ads, and Amazon Associates. I use all of those except Chitika with varying amounts of success. AdSense is easiest to use and most consistent but Text Link Ads could eventually be a big monthly income stream. Definitely have to try my luck with Chitika when I get around to redesigning this site.