Worldwide Brands is a popular source of drop shippers and wholesalers and has been since it was founded in 1999, so the short answer is yes, it does still "work" (here's a Worldwide Brands discount link if you are interested in joining) in 2018. But I want to talk in more detail about what Worldwide Brands offers that you won't find in other directories or marketplaces like Salehoo or Ali Express.
Worldwide Brands vs Salehoo, Ali Express, etc.
Salehoo is very similar to Worldwide Brands – but there are two main differences. First of all, Salehoo lists only 1.6 million products, while Worldwide Brands lists over 16 million. Secondly, Salehoo costs $67 a year, while Worldwide Brands is $299 for lifetime membership (no yearly fees). It's cheaper if you use a discount link like the one above.
Ali Express is a bit different – it's a marketplace for Chinese wholesalers and drop-shippers, a lot like eBay, and there is no membership fee. However, the suppliers are not checked in any way before being listed, so there are no guarantees of quality or reliability. Delivery from China can take a long time too – so bear that in mind.
The WorldWide Brands Advantage
Worldwide Brands is still useful and relevant nearly 20 years after it was founded because their service is by far the best – not only offering only verified suppliers and guaranteed reliability but low prices and fast drop shipping from the USA too.