Gary Halbert passed away in 2007. The site is now run by his sons Bond and Kevin. Not sure what they're going to do with it, but the wealth of the site is in the newsletter archives. Read through those and you'll get a first class education in direct response copywriting and marketing.
And as far as Ca$shvertising, I guess I'll give it a fair shake before I ignore such an overwhelmingly positive reception on WF.
yeah, someone above you said the same and i googled him (after the fact), he passed in 07 like you said.
as for the book, this was the first book i read about advertising and it's well worth the 12 bucks i spent. it made me realize, i've been doing it wrong.
it's a MUST READ.