Web Application Security Resources

General Application Security Documentation:http://www.cgisecurity.com/lib/
SQL Injection:http://www.cgisecurity.com/development/sql.shtml
Cross Site Scripting:http://www.cgisecurity.com/development/xss.shtml
Web Services:http://www.cgisecurity.com/ws/
AJAX:http://www.cgisecurity.com/ajax/
Web Server Security:http://www.cgisecurity.com/webservers/
Web Application Server Security:http://www.cgisecurity.com/appservers/
Database Security:http://www.cgisecurity.com/database/
OWASP:http://www.owasp.org
SQL Server Security:http://www.sqlsecurity.com
The Web Application Security Consortium Threat Classifications:http://www.webappsec.org/projects/threat/