http://euclidlab.org/programs/camp-euclid/
http://gauss.usouthal.edu/~mathcircle/
http://ime.math.arizona.edu/tmc/index.html
http://math.asu.edu/~mathcircle
http://mathcircle.berkeley.edu/
http://bact.mathcircles.org/
http://mathteacherscircle.org/
http://explore.math.ucdavis.edu/
http://www.math.uci.edu/~mathcirc/
http://www.csulb.edu/depts/math/?q=node/20
http://www.math.ucla.edu/~radko/circles/
http://oebmc.mathcircles.org
http://philo.exploratorium.edu/~jcarter/omc.htm
http://www.ocmathcircle.org/
http://www.sdmathcircle.org/
http://www.sfmathcircle.org
http://www.sanjosemathcircle.org
http://math.stanford.edu/circle
http://www.marinmathcircle.org
http://familyrun.ning.com/profiles/blogs/math-salon
http://ccms.claremont.edu/GEMS
http://www.math.ucsb.edu/mathcircle/
http://santabarbaramathellipse.org/
http://www.nuevaschool.org/community/gifted-outreach/math-circles
http://math.fullerton.edu/framesets/events_set.htm
http://www.sdmathteacherscircle.org
http://www.avmathteam.org/pleasanton-math-circle
http://www.csun.edu/~ac53971/pump/
http://www.coloradomath.org
http://www.uccs.edu/~pipes/ppmtc.html
http://rmmtc.ucdenver.edu/
http://www.unco.edu/NHS/mathsci/teachercircle.html
http://home.gwu.edu/~dullman/dcmc/index.html
http://www.flsam.tk/
http://mathcircles.fiu.edu/
http://atlanta.aiuniv.edu/
http://www.math.iastate.edu/CIMSMTC/circle.html
http://www.paytonmathcircle.org/
http://riverbendmath.org/math_circle/
http://mlarsen.math.indiana.edu/~larsen/MathCircle.html
http://www.pi-math.org
http://www.math.ksu.edu/events/mathcircle/
http://west.usd497.org/acti_mathcircle.php
http://rsmlouisville.com
http://www.math.uky.edu/~circles/
http://www.themathcircle.org/
http://www.stmarksschool.org/academics/mathinstitute.aspx
http://www.girlsangle.org/
http://teacherweb.com/MA/RockportElementarySchool/SchoolHomePage/SDHP1.stm
http://gentleknowledge.com/mathcircle
www.artofinquiry.net
http://flintmathcircle.kettering.edu/ http://paws.kettering.edu/~lgawarec/KMS.html
http://www.math.msu.edu/~mshapiro/KidMath/KidMath.html
http://www.facebook.com/pages/East-Lansing-Math-Circle/153744447978946
http://www.dehn.wustl.edu/~blake/circles/
http://www.metamo4icmathcenter.com/index.html
http://www.math.umt.edu/mathcircle/Home.html
http://www.math.uncc.edu/~hbreiter/TeachersCircle/index.htm
http://www.davidson.edu/math/cmc/
http://www.naturalmath.com
http://www.math.ncsu.edu/MathCircles
http://www.nebrwesleyan.edu/people/cminer/teachercircle.html
http://www.princetonmathcircle.org/
http://wildaboutmath.com/2011/03/09/march-math-exploration-group-in-sant...
http://albanyareamathcircle.blogspot.com/
http://bardmathcircle.blogspot.com/
http://giftedmath.buffalo.edu/
http://comet.lehman.cuny.edu/mathcircle/
http://www.nymathcircle.org/
http://www.facebook.com/pages/LSS-Math-Circle/147277661976356
http://www.pushkinacademy.com/en/pamm
http://www.laglib.org/catalan%20math%20circle.pdf
http://www.potsdam.k12.ny.us/Newsletters/AAK/2010-10-01.pdf
http://www.willamette.edu/dept/scheduling/camps_clinics/youth/math/index...
https://sites.google.com/site/beavertonmathcircle/
https://sites.google.com/site/statehighmathclub/gem-seminars
http://www.talkingsticklearningcenter.org
http://www.math.sc.edu/contest/mathcircle/
http://columbiamathcircle.wordpress.com/
http://www.metroplexmathcircle.org
http://www.ma.utexas.edu/users/smmg/
http://www.math.tamu.edu/outreach/BVMTC/
http://www.midcitiesmathcircle.org
http://www.txstate.edu/mathworks/Additional-Resources/MathCircle.html
https://sites.google.com/site/rmmathcircle/
http://www.math.byu.edu/~wright/Math%20Circle/BYU_MathCircle.html
http://www.math.utah.edu/mathcircle/
http://www.math.utah.edu/teacherscircle/
http://www.fairfax-mathcircle.org
http://simathcircle.org/default.aspx
http://assagames.com/nas/MathCircle.html
www.pfmathcircle.org
Math for Love
http://www.math.washington.edu/~mathcircle/circle/
https://www.math.wisc.edu/wiki/index.php/Madison_Math_Circle
https://pantherfile.uwm.edu/gapinter/www/mc_index.html
http://uwacadweb.uwyo.edu/UW_MATH_CIRCLE/
