This is a list, in no particular order, of fiber resources. I'll be adding to it from time to time so do check back.

All Books: 410 Broad St., Chattanooga, TN. If you are in the area, this shop is a must see. There are great deals on used books. There are also wheels and looms and yarns and fiber galore and wow!!!
Great Rock Alpacas: My dear friend Kate's farm. They are wonderful people with wonderful alpaca fiber. Give her a call if you are looking for the very best.

Alden Amos' Big Book of Handspinning. Everyone should have a copy. I adore his sense of humor and this book is a tremendous reference for spinners. You WILL refer to this book again and again.

The Woolery. A fiber shop with online shopping. They sell everything.

Paradise Fibers. Another fiber shop with online shopping. They sell everything.

Webs: They call themselves America's yarn store. I've been and they might be right. They also sell looms, wheels and a little fiber.

Mielkes' Fiber Arts. Another shop that sells a little of everything. They have a good selection of little bitty parts.

Rexenne's videos on You Tube. Lots of spinning, dyeing  and carding videos.

Ask the Bellwhether. Amelia Garripoli is amazing

Abby Franquemont. Is amazing. There are a couple of videos online and Interweave has a download of hers on drafting. She has a couple of books out as well.

Interweave Press. Lots of videos and DVD's. They also publish "Spin Off" magazine.

Dharma Trading Co.. Good source for dyes. They sell fiber but I haven't tried any of it.

Ravelry. Join and find some groups that appeal to you. 

The Fleece and Fiber Sourcebook. Just what it says it is. A nice touch; they spin and knit up a sample of the fiber that is discussed.

RH Lindsay Wool Merchants. Good source for bulk wool and I hear good things about the Falkland top.

Lion Brand Yarn weight chart....with pictures: