Frank Kern is fucking awesome. Most of the Stompernet guys know what they are talking about. John Reese isn't my favorite but he makes some serious cash and from what I've seen of him, he actually gives out some good info.
A few of these guys (Brad Fallon, John Reese, Frank Kern) actually deliver when you pony up the cash, it's an educational investment. Sometimes the whole product is crap except for the 5 minutes that the price worth it, sometimes the whole thing is pretty well rounded.
The only reason I don't hate on these guys is I've actually seen some of the things they put out a year or two after release and it's pretty obvious that they were ahead of the curve at that point in time.