If software is eating the world, then marketplaces are one of the agents of destruction.  Marketplaces are eating every type of firm on the planet. Let’s look at where the feasting is happening. With the majority of the work going to individual freelancers rather than small agencies around the world, oDesk is killing the traditional outsourcing firm. UpCounsel is trying to consume the law firm, especially for small businesses that find the cost of lawyers to be offensive. RecruitLoop, which is innovating on the delivery model and providing hourly-based recruiters, is trying to displace the recruiting firm. Rev is gobbling translation and transcription firms with fast, affordable, and high-quality service that is beating traditional providers.

http://techcrunch.com/2014/11/22/marketplaces-are-eating-firms/