General

• Scuba Board
• Rebreather World
• Scuba Diving Magazine
• Global Underwater Explorers (GUE)
• Project AWARE Foundation
• Ocean Research - Lost Treasures of the Seven Seas
  

Dive Medicine

• Divers Alert Network (DAN)
• Doc's Diving Medicine
• Dr. Grossan's - The Ear, Nose & Throat On-line Consultant

Certification Agencies

General

• National Association of Underwater Instructors (NAUI)
• Professional Association of Dive Instructors (PADI)
• Professional Diving Instructors Corporation (PDIC)
• Scuba Schools International (SSI)
• YMCA Scuba Program (YMCA)
• National Academy of Scuba Educators (NASE)
• Scubadiving International (SDI)

• American Nitrox Divers International
• International Association of Nitrox and Technical Divers (IANTD)
• National Association of Scuba Diving Schools (NASDS)
• Technical Diving International (TDI)
• Lake Mead Technical Divers

Real Time Weather Information

Dive Conditions

• Intellicast - USA Weather
• Intellicast - World Weather
• WeatherNet
• WeatherNet - USA Weather
• Weather Underground
• National Hurricane Center - Tropical Prediction Page