The simple answer is yes, you can start a live chat service. And yes, you will have to research this type of business and learn what material is proprietary (patents or trade secrets) and what can be used by anyone. Olark's web page describes the process the owners went through to build their business. If you aren't planning on competing with them for clients, give them a call or visit their main office and talk to them about their experiences. Many successful entrepreneurs are happy to talk about their business and give a newbie some advice.
Answered on Nov 19th, 2014 at 10:06 AM