I joined the InterSeC community some time ago because of a banner they have on ISC2's website. The registration process includes questions about your security interests across 62 topical areas.... Have you ever wondered why it's so hard to be an expert in everything? :)
Here are the 62 security topics listed on the InterSec website:
Access Control , Analysis & Monitoring , Anti Malware , Application Security , Audit , Authentication , Business Continuity & Disaster Recovery , Cloud Computing , Compliance Management , Computer Forensics , Configuration/Patch Management , Content Filtering , Cybercrime , Data Leakage Protection , Database Security , Denial of Service , DIACAP , Digital Certificates , Digital Forensics/E-Discovery , Digital Rights Management , DOD IA , Education/Training , Encryption/Key Management , Endpoint Security , Enterprise Security , Firewalls , Fraud , GRC (Governance Risk and Compliance) , HIPAA , Identity Management , Identity Theft , IDS/IPS (Intrusion Detection/Prevention Systems , Incident Response , Managed Security Services , Messaging Security , Mobile Security , Network Protocol Security , Password Management , PCI , Penetration Testing , Physical Security , PKI , Policy Management Enforcement , Privacy , Professional Certification , Provisioning , Remote Access , Risk Assessment & Management , Secure File Transfer , Secure Virtualization , Security Consulting , Security Metrics , SIEM , Single Sign On , Software Code Vulnerability Analysis , SOX , Storage Security or Secure Storage , VoIP Security , VPN , Vulnerability Assessment , Web Filtering , Wireless Security