Here's a list of some of the most popular industry groups on LinkedIn. To join a LinkedIn group, you must have an account on the site. Membership in any group is at the discretion of the group administrator.
-Event Peeps: For Live Event Industry Professionals
-Event Planning & Management
-Financial & Insurance Conference Planners (FICP)
-Meeting & Conference Planners International
-The Meetings Community (MeCo) Group