Government / Regulatory

US CERT control systems security program (CSSP):
http://www.us-cert.gov/control_systems/

U.S. Department of Homeland Security (DHS):
http://www.dhs.gov/index.shtm

Federal Energy Regulatory Commission (FERC):
http://www.ferc.gov/

Industry Blogs / Related Commentary

Krebs on Security:
http://krebsonsecurity.com/

LinkedIn Scada group: SCADA/Control System Security Professionals
http://www.linkedin.com/groups?home=&gid=1629767&trk=anet_ug_hm&goback=%2Egdr_1269445848725_1

Smart grid blog by Andy Bochman & Jack Danahy:
http://smartgridsecurity.blogspot.com/

Bob Mick (ARC):
http://www.arcweb.com/Domains/Manufacturing_IT/Cyber-Security/default.aspx

Threatpost:
http://threatpost.com/en_us

ThreatChaos:
http://threatchaos.com/

Dark Reading:
http://www.darkreading.com/index.jhtml?cid=ref-true

Securitytwits blog list:
http://twitter.com/securitytwits/blogs-research

Securitytwits people:
http://twitter.com/securitytwits/people

Society of Chemical Manufacturers and Affiliates (SOCMA):
http://www.socma.com/

Digitalbond:
http://www.digitalbond.com/

Sans Institute:
http://www.sans.org/

ARC Advisory Group:
http://www.arcweb.com/Pages/Default.aspx

UTC:
http://www.utc.org/

Nick Selby:
http://nickselby.com/

Bruce Schneier:
http://www.schneier.com/

The Institute for the Analysis of Global Security:
http://www.iags.org/

OpinionSource Energy Sector Newsletter:
http://www.opinionsource.com/newsletter.jsp#Energy

Industrial Safety and Security Source:
http://isssource.com