Here's a list of helpful resources for programming in general but also Web specific programming. Please add references that you find useful here.

General Programming Resources

• Microsoft Patterns and Practices Developer Center Home
  
• Data and Object Factory (for design patterns)
  
• Code Project (There are great articles here, but some are also naive articles, so just because they say do something this way, does not mean it's the best way)
• OdeToCode.com
• String Formatting in C#
• ConnectionStrings.com

Web Programming Specific Resources

• 4 Guys from Rolla
  
• ASP.NET Client-Side Reference
• SitePoint.com CSS Reference
• ASP.NET AJAX Control Toolkit
• ui-patterns.com (design patterns for GUIs, this is great for increasing usability of a site)
• IISAdmin.NET (run multiple web sites off of IIS in WinXP Pro. In a nutshell you can switch what localhost points to)
  

Blogs

• Scott Guthrie's Blog
• Scott Hansleman's Blog