Craig McMurtry has finished his extensive series of articles (I started trying to keep track back here, but he quit blogging for 4 months), focusing mainly on Active Directory and application security using Active Directory Application Mode (ADAM) and Authorization Manager (AzMan).

Here are links to all of the blog posts in order:

• Application Security, Part 1
• Application Security, Part 2
• Application Security, Part 3
• Application Security, Part 4
• Application Security, Part 5
• Application Security, Part 6
• Application Security, Part 7
• Application Security, Part 8
• Application Security, Part 9
• Application Security, Part 10
• Application Security, Part 11
• Application Security, Part 12
• Application Security, Part 13
• Application Security, Part 14
• Application Security, Part 15
• Application Security, Part 16
• Application Security, Part 17
• Application Security, Part 18
• Application Security, Part 19
• Application Security, Part 20
• Application Security, Part 21
• Application Security, Part 22
• Application Security, Part 23
• Application Security, Part 24
• Application Security, Part 25
• Application Security, Part 26
• Application Security, Part 27
• Application Security, Part 28
• Application Security, Part 29
• Application Security, Part 30
• Application Security, Part 31
• Application Security, Conclusion