Any group can give itself an official sounding name or logo. Look below the surface. Make some general observations about what you learned about the subject you chose to investigate from exploring these sites. Give specific examples and skills. They are often informal.
Individuals can post their resumes, link to favorite sites, and showcase their interests and ideas.
Some personal Web sites also serve as professional sites. For example, many professors publish their syllabi and other course material on their own Web pages. They can be relatively mainstream or radical in interests and vary widely in credibility of information. Information sites - which include research, reference sources, and fact sheets. Many institutions, governmental and private, provide such services to the public.