It used to be that when someone said the word Networks, people would think of Computer Networks with lots of wire connecting computers to each other. Now the term is used to describe groups that an individual or a business belong to. Many are computer based or virtual meaning no real life interaction, or Face to Face meetings happen. Some are mainly Face to Face. I belong to many in both catagories. Following are the links to some of my profiles or to the organizations themselves.
Meetup - I'm extremely active with Meetup and have been since 2001. I have belonged to 1000's of different Meetups and am currently a Member of over 260 groups, Organizing nine of them and Assistant Organizing three of them.