Jacque: With regards to your healthy junk food venture, if you run into a situation where some special companies you want to sponsor on your site only want to or only can afford to operate through the avenues of sales they have already worked hard to setup at the natural distribution houses, you can always look into joining the distributors' ranks as a "buying club" (not sure if you know of these, might be worth looking into in case you find a worthy vendor who can only go through distributor channels) which would allow you to take orders for some obscure little companies and submit the orders once you meet the distributors minimums for shipment (kinda like how people on etsy group up to place bulk orders). A few great natural distributors are Tree of Life, UNFI, Lotus, Avenue Gourmet, Nature's Best and Threshold Enterprises - they're all pretty darn easy to work with too, and some of them even sell stuff worthy of crafting such as bead supplies, oils, incenses, paper, spices and the likes.
Another great resource is NPA, Natural Products Association, as they have their hands all over the industry and they help run the natural products expo which is the end-all-and-say-all for company presentation and tasting, held once a year.
Been a natural and organic vegetarian for almost 20 years, and obviously spent quite a bit of time (ok way too much time) in the natural products industry on the middleman side of things, so give me a holler if you need help/advice ;-)