Other stuff
Christian Graus - A wrapper for using .NET to submit credit card transactions via the Authorize gateway
Sijin Joseph - An alternative model of computation for concurrency
Oleg Shilo - C# Script: The Missing Puzzle Piece
Greg Duncan - Code Project Browser Add-in Updated to Support VS 2008 and File Hash Generator Explorer Shell Extension - MD5 a file via right-click in Windows Explorer…
Greg Young - DDDD 3 [What/Why this]
Sahil Malik - Disable IE Enhanced Security Mode in Windows 2008
Dave Burke - Mission Critical Community Server Background Tasks
VSX Team Blog - PowerCommands 1.1 released
Leon Bambrick - Syntax highlighting of strings

Debugging stuff
Tom - ASP.NET Performance counters missing and Recommended Reading
Sasha Goldshtein - Automatically Converting Exceptions to WCF Faults
Tess - My presentation on Troubleshooting ASP.NET production issues at Developer Summit 2008

Web stuff
Mike Ormond - Building ASP.NET AJAX Controls - Further Reading
saanj - Calling ASP.NET Server Side Events using JavaScript
Jason Gaylord - How To: Properly Reference A JavaScript File
.Net Adventures - Must Have Tool for ASP.NET Developer
Dion Almaer - Upside Down Text

Career stuff
Mike Gunderloy - Clean up Those Heaps!
Entrepreneur .com - Drop Shipping Pros and Cons: The Cost of Convenience
B.V. Papadopoulos - Going Solo - Points of Interest
Jason Calacanis - The ultimate cure for startup stress

WCF stuff
Dave Jansen - Controlling the serialized order of WCF Data Contract Members

PowerShell stuff
Joen Bennett - Creating PowerShell Scripts from your Command History and The SQL Server PowerShell Provider and WGet 2 for PowerShell
PowerShell Team - Managing Datacenter Machine Names
John Cook - PowerShell Script for Reviewing Text Shown to Users

Other link blogs
Arjan Zuidhof - LINKBLOG for April 11, 2008
Sam Gentile - New and Notable 233