article, microworkers.com differs greatly from a click farm as it is a completely distributed crowdsourcing tool, but some of the campaigns done here might be similar to those done by a click farm.

On the deceptiveness of such campaigns in comparison with traditional advertising (where the prospective customer is aware that it is being presented with an ad) is well described by @DelRiego2009 and @Forrest2010 in connection with then-new US Federal Trade Commission guidelines on endorsements and reviews.

This article focuses on probably way smaller market available on microworkers.com, which is, however, easily accessible for freelancers and is not specialized to gray marketing in particular. In contrast with the services that directly offer followers and social media activity (Fiverr, SeoClerks, InterTwitter, FanMeNow, LikedSocial, SocialPresence, SocializeUk, ViralMediaBoost [@DeMicheli2013]), here the client has to organize its own campaign and orchestrate the freelancers on the crowdsourcing platform. This allows for creativity and innovations in the campaign methods.

@Nguyen2014 explained the idea behind microworkers.com, founded in 2009, as well as reported its user count at the time of writing (presumably 2014). @Howe2006 also reported on microworkers.com as a crowdsourcing platform.

According to Nguyen, the platform had over 600,000 users from 190 different countries. The 