I purchased a list from a site called Worldwide Brands in hopes of purchasing products in bulk to sell online. Unlike sites like Doba, with Worldwide Brands you have to contact the individual companies and hope that they will supply to you. I found that Google offered the same things, just takes more time.
I'd go with WorldWide Brands as well. Especially if you want to specifically sell products on ebay since they are the only publisher of suppliers that is ebay certified. Not sure if you have looked at SaleHoo but it's another of the larger publisher companies. http://www.wholesaledropship.askindex.info/