I posted about this deal awhile back and noticed today that this deal is still available.
I have ordered from Vitacost a couple of times since my previous post and have been very happy with the products, the shipping time and the product availability & pricing.
A lot of the items that I would normally have to drive to Wichita to purchase are available on Vitacost, for a fraction of the cost (even with shipping)!
I highly recommend this site. With this $10 credit for new customers, there are TONS of items that you could get for free.