April 2002: Energy
http://ecommerce.nsta.org/enewsletter/2002-03/shell_enewsletter_members.htm
May 2002: Climate and Weather
http://ecommerce.nsta.org/enewsletter/2002-04/member.htm
June 2002: Genetics
http://ecommerce.nsta.org/enewsletter/2002-05/member.htm
July 2002: Space Exploration
http://ecommerce.nsta.org/enewsletter/2002-06/member.htm
August 2002: Science and Other Disciplines
http://ecommerce.nsta.org/enewsletter/2002-07/member.htm