"One of the most common ways for ergonomists to interact is at conferences. When you've developed something new, you can meet and share your ideas with other organizations and individuals."
Jocelyn, BPh, BSc, MBA, DESS
Often times, national organizations hold conferences so that members can meet one another in person, or guest speakers can share ideas. But there are also larger less frequent conferences, like World Usability Day, where multiple conferences are held in cities across the world on the same day.
Events like these can be monitored and reported for you with the Calendar application available from Interaction Design
Also, many major websites post lists of events, such as Usernomics