Education
Bad Dog Theatre Company, bang, BATS Improv School, Comedy Dojo, ComedySportz Chicago, East Bay Improv, Ed Reggi, Edge Improv, Gotham City Improv, Hal Peller
Festivals
Canadian Improv Games, Chicago Improv Festival, ComedySportz National Events, Del Close Marathon, Dirty South Improv Festival, Los Angeles Improv Comedy Festival, Miami Improv Festival, Out of Bounds, Phoenix Improv Festival, San Francisco Improv Festival
Groups
ComedySportz, Improv Olympic, Theatresports, !nstant Theatre Co., (the) Zamboni Revolution, 1 Trick, AB3 Improv, Ad-Libs, Amnesia Wars, Atomic Improv, Bad Dog Theatre Company, Bare, Barren Mind Improv
Venues
City Improv, Improv Experiment, The, The Hideout Theatre & Coffee House, Whole World Theatre
Improv Across America
Database of improvisational and sketch comedy. Information on shows, performers, festivals, workshops, and performance and rehearsal spaces.
Improv Encyclopedia
Explanatory guide to game descriptions, terms, and key personalities in the development of improv comedy.
Improv Resource
Essays, interviews and message boards related to the art of long-form improvisation.
Improv Review
Improvisational comedy news site offering features, reviews, and contact information.
Improv Webring
Large listing of improv troupes from around the world.
ImprovChicago
Web site serving the Chicago improv community with audition info, pertinent links, and a message board.
Improvland.com
A virtual community for fans and players that includes a chat room and message boards, audio & video clips, and regular news features & columnists.
The Improvisation Top 50
Ranks participating Web sites by their weekly hits statistics.
The New Improv Page
Vast collection of improv-related links from how-to pages to troupes all over America.
Utah Improv
Site for and about the Utah improv community, with troupe info and show listings, as well as interviews with performers and articles about improv.
YESand
Improv news site with feature articles, an events schedule, and a bulletin board.