Social Web is the world of interactive web applications that allow us to communicate, discuss, and share all kinds of knowledge and content. This web site is part of the social web--it is web 2.0 in that it is allowing us to connect and post comments, ideas, knowledge, photos, etc. and interact together. (Web 1.0 was not interactive in this way--users could merely download pages of HTML or files, but there was not the 2-way or many-way interaction we see in today's web sites. I hope this helps. Why do you ask?