If you have a career, hobby, or just a subject of interest, then you should join an online forum. Whether you're an amateur author, an established author, an actor, a vegan, an astronomer, amateur or professional, belong to an ethnic group, like Hispanics, like jazz or digital filmmaking, there's an online forum for you.
Celebrities have their own forums. For example, if you like the comic and actor Tim Allen, then you can go to Tim Allen's official website and join his forum. At Tim Allen's Idea Exchange, TimAllen.com you can post comments on "Books by Mr. Allen" or "The World of Quantum Physics" or other interesting topics.
To find these different forums, just put the name of the type of forum you're looking for in your favorite search engine. For example, if you're an actor or interested in acting, put "actors forum" in your search engine. Actorsforum.com. A vegan? Veganforum.com. There are Entertainment forums, Games forums, Sports forums, Business forums, Science forums and many others.
Specific forums include Amateurauthor.com, Writingforum.com, Webmaster-Talk.com, Jazzforum.com.
Many of these forums can connect you to jobs, classified ads, you can post samples of your writings if you're a writer, learn about auditions for stage, film and TV, if you're an actor. There are workshops, discussions.
These forums are set up so you can post your comments and receive replies from other forum members.
These online forums are international so that you can connect to those worldwide with your interests.
You can also start your own forum. Put "free forum hosting" or "start your own forum" in your search engine. These can be found at Easy Free Forum, Forum for Free, Free Forums, and Free Power Boards, for examples. You can also go to bravenet.com where a free forum is included with your free website.
So if you're interested in connecting to others in your career, hobby, or interest, post comments and receive replies and post your own replies, think "forum."