Hey there. I'm right there with you, except I'm building rockets for myself, I'm not getting anyone else into it. But I too was surprised with how little information is obviously available.
My suggestion would be to go to your local hobby shop and talk to the people working there. You've been into enough stores before and can quickly tell which of the "help" actually know what they're talking about and which ones are there just for the holiday season. Talk to a few and find out which one(s) really know rocketry and seem eager to discuss it. I'm guessing every hobby shop has at least one. If not, find another hobby shop.
Once you've found him, he'll tell you everything you need to know to get started and you'll end up coming back again and again with other questions and looking to buy more stuff.
This is experience I've found recently with rocketry, but also with pretty much every other hobby I've taken up and enjoyed enough to spend a lot of time and money on.
For help on builds, or techniques on how to do things, I've found this forum to be priceless. If I haven't found an answer doing a search (and I've found lots) I've just started my own thread.
There are lots of great blogs where someone is building a rocket and they post step by step what they did, giving tips, showing pictures, etc. so you can see exactly how to build a rocket. Use Google to find them or I can link you to a few if you'd like. They're very helpful to read before starting a build of your own because there is a LOT of things you need to do that the instructions don't even hint at.
Good luck!