Federation of American Societies for Experimental Biology:
http://capwiz.com/faseb/mlm/signup/?ignore_cookie=1
Coalition for Life Sciences:
Society for Neuroscience:
http://capwiz.com/sfn/home/
American Society of Pharmacology and Experimental Therapeutics:
http://www.aspet.org/advocacy/legislative-alerts
A whole list of Action Alerts updated by Union of Concerned Scientists:
http://www.ucsusa.org/action/alerts/
Research!America:
http://capwiz.com/ram/home/
AAAS: Human Rights action alerts:
http://shr.aaas.org/actionalert/index.shtml
American Society of Hematology:
http://grassroots.hematology.org/blood/issues/alert/?alertid=40438501&PROCESS=Take+Action
American Institute of Biological Sciences:
http://www.aibs.org/public-policy/news/action_alert_ask_federal_politicians_to_fund_science.html