Tropical Traditions Coconut Flour -- currently 33% off, and a chance for free shipping too (check out the coupon code on the right side of the page)
I buy the Bob's Red Mill stuff at the organic grocery store and find it's good, and I know you can order their products online. I would assume that the Tropical Traditions is worth ordering too considering their reputation. I've never ordered from them personally because I have so many options for shopping locally, but people say their stuff is good.
“If I didn't define myself for myself, I would be crunched into other people's fantasies for me and eaten alive.” --Audre Lorde
Peak weight on Standard American Diet: 316.8 lbs
Initial Weight When Starting Primal: 275 lbs
Current weight: 210.8 lbs
Goal weight: 220 lbs (or less): MISSION ACCOMPLISHED.
The way "ChooseMyPlate.gov" should have looked:
Netrition.com is awesome for ordering any food items ... $4.95 flat rate shipping no matter how much you order. They carry a number of different brands of coconut flour.
Amazon.com has great prices on specialty foods, too, though I'm not sure if I've looked for coconut flour there -- they seem to have everything I've ever searched for, though!