iherb.com is very nice.... many of us have used it for years.
I switched to Amazon because we buy things there so often the previous $25 free shipping was handy for us. But now... not so much!

iherb is fast and I've never had a mistake from them. At one time you know, it was one of the few places you could get methylcobalamin! It is still a good source for unusual items.

Swanson has some Doctor's Best products too.
They do have it at a reasonable price still...but who knows how long that will last?
http://www.swansonvitamins.com/docto...mg-60-veg-caps

I used them for a short time, but I didn't like their branded products (their Theanine didn't seem to work like the Doctor's Best did). Right now their shipping is free over $20... but that tends to change frequently. They do send an interesting catalog out once you have used them. It is interesting to read...and huge!

I still use Puritan's for our basic stuff. Their buy one get 2 free (and sometimes free shipping offers come to your email) are big savers for us. Lysine, taurine, Vit C, biotin, D3, Melatonin, kelp (for iodine), are examples of what I buy from them. I used to get our methylB12 there, but it has gone up in price, and Costco now has it at a bigger savings for us.