The Definitive BMW Links Site:
• Ben's Big BMW Links

Great Site for E30 M3 Articles and Videos:
• Anthony's E30 M3 Ecke

Other owner's E30 M3 sites:
• Ron Checca
• Justin Bedard

Good sites for parts and performance:
• GSPerformance
• VAC Motorsports
• Dynospot Racing
• Ground Control
• Motorsport Imports
• UUC Motorwerks
• Frank Fahey Motorsport
• Top End Performance
• Steve D's Ultimate Garage
• Turner Motorsport
• Moseley Motorsport (UK)
• Zionsville Used BMW Parts
• Pauter Rods

Good sites for E30 M3 race preparation:
• Strictly BMW Independent Service

Other BMW related links:
• David Holeman's M Power Site
• Suzy Kraft's E36 M3 Page
• Al Jenab's Damper Dyno Charts
• The Unofficial BMW M3 site

General Performance Sites:
• Phil Abrami's R-Series Tire Article