IEEE (Institute of Electrical and Electronics Engineers)

http://www.ieee.org/

From the IEEE website:

Through its technical publishing, conferences and consensus-based standards activities, the IEEE

• produces 30 percent of the world's published literature in electrical engineering, computers and control technology,
• holds annually more than 300 major conferences and
• has nearly 900 active standards with 700 under development.

See Also:

• 802.3af Power Over Ethernet
• 802.1x Port Based Network Access Control - Data layer authenication