I fought it 'til the end, but I think there are some sites/shops/people that I just need to share with other people who might not know about them. I'm only going to put links on here that I think you can't readily find on other sites, or links to sites that although you can find elsewhere, you shouldn't miss. Let me know if you have links that you think should be here.
If you could only have one link to get info about the KLR, this would be it. Pretty much anything you need or want to know about the KLR is covered here. Well layed out and easy to use, it's the KLR place on the web to be.
This here is an UNMODERATED Yahoo! group where one can get questions answered and/or share info about the KLR. Be warned though, there are serious consequences for not following the list rules!
For KLR parts, there is no better place, local or otherwise, than Arrowhead Motorsports. Fred Hink out in Moab is large and in charge and will get you parts faster than you can say "I just ordered some parts." Seriously, I don't know how he gets stuff out so fast. He's also helped out in situations where I didn't know what was up. Get your parts from Fred at Arrowhead. You'll be satisfied.
If you're ever in Southeast Michigan, stop in to Zack's Cycle Enterprises in Milan. They will go out of their way to help you out with your motorcycle/atv/snowmobile problem. Also, they can get pretty much any part super-fast. They perform reliable service for a decent price, and get it done in a reasonable amount of time. Zack's also carries lots of bike stuff in their showroom. Check 'em out!