NGNutrition.com are a relatively new company but from the comparison shopping we have done are prices are very competitive. We offer 3 different delivery options to U.S. customers and have a 99% customer satisfaction rate.

The big 3 I usually use are A1supplements, AllStarHealth and Bodybuilding.com

bodybuilding.com usually has decent deals...so does supplementWarehouse

Supplements Store that pays you???
 

I heard about supplementsatcost.com from a friend, they have a $20/month membership but if you place 1-2 orders a month you still save money vs. most other stores (unless somewhere is having a fire sale) The membership is part of their affiliate program where you can have friends sign up and type in your member id# and you'll get $10/month/referred friend. I signed up 3 people in the 1st few days and my membership is free plus I get $10/month into my paypal account.... they sent me a free shirt with my 1st order, pretty cool stuff!

You cant go wrong with Bodybuilding.com. TFSupplements is legit. Even Amazon is a good source.

Nutraplanet.com
Needtobuildmuscle.com
TFsupplements.com
Prosource.net

I think bodybuilding.com has great deals. For me it's not. I live in Europe.

bb.com is a classic.

But some others in Canada are:

active8canada
svncanada
supplementsource.ca

those are just a few. I usually shop around to see the best deals and then decide from there. Sites are always doing promotions and discounts!

Cheers

Swanson suppliments is good but limited.

I would like to recommend the below supplement store. They have huge variety of supplements at a very reasonable price.