SOCIETY | PAGE 1 | PAGE 2 | PAGE 3 | PAGE 4 | PAGE 5 | Back to the Directory Main Page American Astronomical Society Website     ( 433 visits since 2006-11-23 ) Established 1899, AAS is the major professional organization in North America for astronomers, other scientists and individuals interested in astronomy. [ 70 votes, rating : 8/10 ] URL : http://www.aas.org American Cancer Society     ( 312 visits since 2006-11-23 ) Information and Resources for Breast, Colon, Lung, Prostate and Other Forms of Cancer. The American Cancer Society (ACS) is a nationwide, community- based voluntary health organization. [ 72 votes, rating : 4/10 ] URL : http://www.cancer.org American Mathematical Society     ( 414 visits since 2006-11-23 ) Founded to promote mathematical research and education through conferences, contests surveys, publications, employment services, scholarship programs. [ 38 votes, rating : 8/10 ] URL : http://www.ams.org American Society of Civil Engineers (ASCE)     ( 391 visits since 2006-11-23 ) Extensive information about the national civil engineering professional society. Features an overview of programs, events. [ 100 votes, rating : 4/10 ] URL : http://www.asce.org APS Physics | APS Home     ( 142 visits since 2006-11-23 ) March Meeting · April Meeting · Other APS Meetings · Meeting Calendar · Abstract Submission · Archives of the Bulletin of the American Physical Society. [ 52 votes, rating : 7/10 ] URL : http://www.aps.org