I'm a complete knife knut, an entire room in my house is devoted to my knife collection. Knives are a big part of how I make a living as well, since I sell lots of custom knives as well as some production ones at my store.
Most of the general public seems to think that the average knife user is a punk who'll only carry one as a weapon to attack hard working folks. I deal with that missconception everyday, and I try to do my best to prove them wrong.
Anyway, I know I'm preaching to the choir like Mark F said, so there's no sense in me ranting on and on about how useful knives and multitools are.
Check out Knife Rights - Home
it's a sort of NRA for knives, it was started by Doug Ritter (you might now him for his colaborations with Benchmade or from his website EQUIPPED TO SURVIVE - Outdoors Gear, Survival Equipment Review & Survival Information