2006 saw the first "SalonCon", a neo-Victorian/steampunk convention. It ran for three consecutive years and featured artists, musicians (Voltaire and Abney Park), authors (Catherynne M. Valente, Ekaterina Sedia, and G. D. Falksen), salons led by people prominent in their respective fields, workshops and panels on steampunk—as well as a seance, ballroom dance instruction, and the Chrononauts' Parade. The event was covered by MTV and The New York Times. Since then a number of popular steampunk conventions have sprung up the world over, with names like Steamcon (Seattle, WA), the Steampunk World's Fair (Piscataway, NJ) and Up in the Aether: The Steampunk Convention (Dearborn, MI).
Steampunk has also become a regular feature at San Diego Comic-Con International in recent years, with the Saturday of the four-day event being generally known among steampunks as "Steampunk Day", and culminating with a photo-shoot for the local press. In 2010 this was recorded in the Guinness Book of World Records as the world's largest steampunk photo shoot. The Saturday steampunk "after-party" has also become a major event on the steampunk social calendar; in 2010 the headliners included The Slow Poisoner, Unextraordinary Gentlemen and Voltaire, with Veronique Chevalier as Mistress of Ceremonies and special appearance by the League of STEAM, and in 2011 UXG returned with Abney Park.
Steampunk also has sprung up recently at Renaissance Festivals and Renaissance Faires, nationwide. Some have organized events or a "Steampunk Day", while other Fests simply support an open environment for donning Steampunk attire. The Bristol Renaissance Faire in Kenosha, Wisconsin, on the Wisconsin/Illinois border, featured a Steampunk costume contest during the 2012 season. The previous two seasons featured increasing participation in the phenomenon.
Steampunk also has a growing following in the UK and Europe. The largest European event is "Weekend at the Asylum", held at The Lawn, Lincoln every September since 2009. Organized as a not-for-profit event by the Victorian Steampunk Society, the Asylum is a dedicated steampunk event which takes over much of the historical quarter of Lincoln, England, along with Lincoln Castle. In 2011 there were over 1000 steampunks in attendance. The event features the Empire Ball, Majors Review, Bazaar Eclectica and the international Tea Duelling final.
Source: wikipedia.org