Sobre SQL Injection

Microsoft's Opinionated Misfit Geek - Tools to block and eradicate SQL injection
http://www.misfitgeek.com/Tools+To+Block+And+Eradicate+SQL+Injection.aspx

SQL Injection Attack
http://guyellisrocks.com/sql-server/sql-injection-attack/

SQL Injection Defense Tools
http://blogs.msdn.com/sdl/archive/2008/06/24/sql-injection-defense-tools.aspx

Microsoft Security Advisory (954462) Rise in SQL Injection Attacks Exploiting Unverified User Data Input
http://www.microsoft.com/technet/security/advisory/954462.mspx