Who is doing INTERNET based research?

Research is a broad term. Here, it is used as in "looking it up (on the Web)". It includes any activity where a topic is identified, and an effort is made to actively gather information for the purpose of furthering understanding (no matter how trivial-seeming the subject). Common applications of Internet research include personal research on a particular subject (something mentioned on the news, a health problem, etc), students doing research for academic projects and papers, and journalists and other writers researching stories. It should be distinguished from scientific research - research following a defined and rigorous process - that is carried out on the Internet, also from straightforward finding of specific info, like locating a name or phone number (and it does not refer to, research about the Internet).