At the ASCD website, Dina Strasser works her way through Marzano's Art and Science of Teaching. She's posted her blog entry on the first chapter.
I tried a similar exercise this past summer. I'm looking forward to reading the work of someone who's good at it.
UPDATE, 21 Feb: Marzano speaks. This is actually a pretty cool format--it's like listening to a really fascinating conversation, with a computer right next to you that cites the speakers' sources as they talk.
I'll try to keep abreast of Dina's (etiquette check: is it okay to refer to someone I've never met by their first name? Politeness in World 2.0 is so weird.) blogging and Bob's responses. (Can I call him Bob?)