I, too, was going to start a thread that this is a fantastic site.
I have been a member of VWvortex.com, but have pretty much given up on the forums there, as there is limited useful information.
I've been checking out tdiclub.com every now-and-then ever since a friend bought a Jetta TDI about 10 years ago.
I chanced upon this site last month when I bought a JSW. I couldn't believe the incredible wealth of useful information on here.
Great "smilies," too, compared to other sites.