XML (& .NET XML)

Some Topic
blah blah blah

.NET
MVP XML Library

Tools
XMLFox -- Free XML Editor (& Tutorials)

Digital Signatures
Google "XML digital signature MSDN"
- MSDN: Understanding XML Digital Signature
- CodeProject: Using XML Digital Signatures for Application Licensing

SQL Stuff

Joe Celko

Colm O'Connor -- Preventing SQL Injection Attacks
Coding Horror -- Give me parameterized SQL, or give me death
SQL Injection Attacks by Example

Frans Bouma's blog -- Stored procedures are bad, m'kay?