I sometimes put "eBay blog" into Google to see what turns up, and last week I found a great blog by an artist who lives in an RV and sells vintage finds as well as her own artwork on eBay. I love it! Her blog is called The eBay RV Artsy Life of Sue Soaring Sun.
here's the link. The book is about a guy who makes a living selling antiques, and I could find some interesting parallels between his hunt for antiques and my lower-budget adventures. There's also some discussion of eBay in the book. But mostly it's just a great nonfiction book about one guy's passion for running his own business buying and selling things that he loves.