nutsonline is one of my favorite online stores for nuts, seeds, dried fruits, snacks and stuff like that.
vitacost is where I buy most of my hygiene goods, protein powder, sups and vitamins.
I have a farmer here that sells me stuff for most of the year. Mainly eggs, beef, chickens and sometimes mare's milk.
The rest I buy from whoever has the best prices. I like Food4less the best overall, which is essentially a Kroger store. I hate Jewel, but I'll shop there when I have to. Walmart is okay sometimes, but they don't ever have the best price on groceries. And last, but not least, I shop at various Supermercandos for produce and spices and Polish Deli's for meats and breads.
Oh, Aldi's gets an honorable mention. Nobody in the city of Chicago avoids the Aldi's.