If you want to learn to program better, Usenix LISA 2013 has a number of excellent presentations.

Usenix LISA 2013 Presentations that teach coding:

Sunday, Nov 3, 2013:

• PowerShell Fundamentals
• Building Your PowerShell Toolkit

Monday, Nov 4, 2013:

• Core Skills: Scripting for Automation
• Advanced Shell Programming

Wednesday, Nov 6, 2013:

• Introduction to Chef

Thursday, Nov 7, 2013:

• The Python Programming Language

Friday, Nov 8, 2013:

• Introduction to Puppet Enterprise

Other lists of presentations: DevOps, Unix/Linux administration technical skills, Cloud Computing, and Women at Usenix LISA.

[I apologize in advance for any typo or errors. Please report any problems in the comments. The conference website has the latest information.]