Have you read the "about us" for able2know? Sounds like DIY to me. Here it is:
able2know's mission is to help connect people, knowledge and resources.
able2know is committed to providing these services free of charge. We believe the costs of developing and providing these services should be defrayed primarily with ethical advertising -- that is, an avoidance of pop-ups, spam, or other unreasonably obtrusive forms of advertising.
We seek to maximize the opportunities for people with similar interests and goals to connect, gather information, and network through the able2know service.