It may be the largest directory of certified suppliers, but Worldwide Brands is not the only source of good quality wholesalers and drop shippers. Some of the top alternatives are Salehoo and Doba, both of which start off being cheaper than membership to Worldwide Brands.
Worldwide Brands is an old fashioned directory – it may be larger than any other, but you can really only search for suppliers and products in the members area. If you want to buy anything you'll need to contact each supplier and deal with them individually.
Salehoo is much the same – the only differences are that Salehoo is cheaper than Worldwide Brands (it has a $67 membership fee compared to $299 for Worldwide Brands) and has fewer products on offer at only 2.5 million compared to 16 million in Worldwide Brands.
Doba is much more different – rather than a simple directory, it's a service for anyone looking to get goods drop shipped. There are some key limitations, such as only being able to have goods drop shipped and only to addresses in the United States, but Doba is a really easy to use solution if you're just looking for drop shippers. It's more expensive than Worldwide Brands at $29 a month, but for many people this is a price worth paying.