The site was co-founded by Ijad Madisch, Sören Hofmayer, Horst Fickenscher in Boston. Their main office is now located in Berlin but they maintain an office in Cambridge, Massachusetts.
Many articles and other sources describe ResearchGate as a hybrid, or mash-up, of Facebook, Twitter, and LinkedIn.
Users maintain a profile page, can form or join groups, browse job listings, and employ "like" or "follow" buttons.
Recently acquired another academic social media site called scholarz.net.
Getting started on ResearchGate
Researchers are encouraged to upload their articles, raw data sets for discussion, or discuss failed experiments.
Read what Dr. Madisch has to say about the future of peer review in this article from the January 2013 issue of Discover.