You're probably asking "Who the Hell is Lynn Blake?" Blake (aka Yoda) was one of the first authorized instructors of the Golfing Machine book by Homer Kelley. He taught it for awhile and then I believe he went back to working a "regular job" in the financial industry and then recently got back into the teaching game. Works with a lot of tour pros like Brian Gay and Jay Williamson. Oh, and THIS is Lynn Blake
You have to register to see the F-R-E-E videos and the photo gallery, but it's worth it. Their forum is very TGM oriented and a bit hard to understand since everybody is very advanced in TGM, but still an interesting read. Especially if you want to learn about the Bible of Golf Swing Instruction.