SansInstitute is an organisation established in 1989 that specialises in information security and SecurityManagement. see http://www.sans.org/aboutsans.php
SANS stand for SysAdmin, Audit, Network, Security
They are involved in research, training, certification and organisation of security industry events.
The InternetStormCentre? (ISC) is one of its better known operations and it deal with new threats as they get reported. A recent (Aug04) project is the logging of user experiences on SP2 (security centred) release of WindowsXp.
Selected resources from SANS
I observe that "sans" means "without" in French. Always check your marketing output against foreign languages.