Please take a look at my new list of UCL practice guides. The first guide listed is, of course, Will Stern's Bus. & Prof. C. §17200 Practice, published by The Rutter Group. I'm aware of two other practice guides, one published by Matthew Bender and the other published by the State Bar of California's Antitrust and Unfair Competition Law Section. I've also listed Competition, the journal of the Antitrust and Unfair Competition Law Section, which frequently publishes interesting articles about the UCL. If you know of any UCL practice guides that I haven't listed, please drop me a line.