I just joined SaleHoo and I have began to search for drop shippers. I am unsure of how to approach this. Do I contact the wholesalers directly? Do I have to become a member with their company as well?
Yes, just contact them directly or signup as a member... Usually it's free to do so and if they are really good, signup with their newsletter as well! Always try some sample orders first if you can, to check the quality, service, and shipping.