Hi Moneymaking, time saving gold )) So, I like Zeerk. This site supports daily withdrawal request for approved gigs. Means no waiting period for your payments. Once the seller approved your gig, you don't need to wait 15 days like fiverr. You click on request withdrawl and you will see payment notification in your paypal account on same day. Fiverr is still a good website to find good providers it is also have the most traffic but Zeerk has the advantage of withdrawal time.
I don't think zeerk is better than fiverr. At fiverr they have a large community and also have many niches, categories that you can sell and buy anything you want on them. More, if you focus only on Digital marketing, I would suggest you should also join seoclerks, this site is also good for both selling and buying too.
No, seoclerks is a big site own by another guy. I don't know him but I have an account selling on that site. That's really good.