Mike Nolan just added a cool feature to the USCF affiliates search in MSA (for the uninitiated, that's the "Member Services Area" of the United States Chess Federation). If you go to the MSA homepage, then click on "Look up a club or affiliate," then type in your local club's name, then choose "Active Player List" from the search, you'll get a list of the top 200 players who have played at least two USCF-rated events at your affiliate in the past two years.
Very cool: please thank Mike Nolan!
Here are a few links to Chicagoland organizations and friendly carpetbaggers. Some of the lists look a little strange because of the requirement that one must have played in TWO events before appearing on the list. The ICA doesn't even have a listing because it bids virtually all of its events out, and the winning bidders submit under their affiliate listing: So if you see an affiliate with only one member on the list, don't be put out: it may just be an artifact of the tight search requirements.
St. Charles Chess Club
North American Chess Association
Chess for Life
Renaissance Knights Chess Foundation
Highland Park CC
Continental Chess Association (the largest US organizer; Illinois juniors Rosen and Jayakumar make the top 200!)
Midwestern Chess Adventures
Midway Chess Club
Joliet Junior College CC
Chess Education Partners
Dynamic Chess, Inc.
Touch Move Chess Center
McHenry Area Chess
Knights of the Forest CC
International Educational and Cultural Services
Downers Grove CC
Park Forest CC
South Suburban Chess Club-Oak Lawn
Village of Park Forest
Tri-County Chessmen Club
I'm happy to correct any errors & omissions. If I left out an affiliate between 600xx through 608xx, please let me know!