Steamcon and other conventions

Similar to gaming, comic books, and other hobbies, steampunk also has its own conventions. Steampunk films, special guests, and panels are just a few things you can see at a steampunk convention.
Some of these conventions include
-Steamcon in Seattle, Washington
-Steam Powered in California
-TempleCon in Rhode Island
-Nova Albion Steampunk Convention in California
-World Steampunk Expo in Dearborn, Michigan
As well as their own conventions, you can also find people dressing up in steampunk attire at anime, gaming, and science conventions.

Here is an example of some people dressing in steampunk attire at Ohayocon 2010, which is an anime and gaming convention.