This is is my weekly link post.  It is here that I note the web sites that I have run across that interest me – whether it be related to work or play.

Application Development/Design

• Scott Guthrie continues his link listing series with April 11th Links. Love those links!
• Scott Hanselman continues his great link series with The Weekly Source Code 23.
• Soon Hui tells us why he is a .NET Programmer and Proud of it.
• Justin Etheredge has a great article on Grouping LINQ Aggregates in C#.
• David Hayden posts about the LINQ to SQL Visual LINQ Query Builder. A LINQ to SQL Visual Studio add-in.
• Karl Shifflett has posted a link to a webcast on The Mole Visualizer for WPF.
• Ben Scheirman explains The Importance of Writing the Test First.
• Aaron Sprague has posted some General C# Questions and their answers.
• Josh Smith has posted a great article titled WPF Disciples 3D Blogroll…with Audio!
• Claudio Lassala has posted a great article on TDD titled The whole testing thing…
• Sahil Malik provides some great information in the post What is WCF?
• Joel Cochran has posted a wonderful article titled I am a Professional Geek.
• Mohammad Azam tells us about LEFT JOINS and DefaultIfEmpty Operator in LINQ.
• Scott Hanselman has posted a great article titled How do Extension Methods work and why was a new CLR not required?
• Tutorial Videos:  Mark Miller on CodeRush with Refactor (DnrTv)
• Article(s) from Code project that Interest me:  Calling a Web Service from SSIS package ~  Useful Generic Array Functions ~ Data Binding an Enum with Descriptions
• Snippet(s) from CodeKeep that Interest me:  Insert a value into an identity column ~
• Tip(s) from DNTOD that Interest me: How to change HTML markup produced by ASP.NET controls

SQL Server & PowerShell

• BlackWasp has posted an article on how to Determine the SQL Server Version.
• Article(s) from Code project that Interest me: If Exists Update Else Insert (SQL)
• Kenneth Downs has posted a detailed article on GROUP BY, HAVING, SUM, AVG, and COUNT(*).

 Houston Area & Regional Technology Events

• User Group Meetings – This is my monthly listing of user group meetings.
• Mohammad Azam has posted a Recap of his presentation at the Houston .NET User Group meeting as well as the Demo Downloads.

Internet, Software and General Technology

• I am reading Lifehacker by Gina Trapani and in the book she mentions Microsoft PowerToys for Windows XP. There are a lot of great tools here.

Blogging and Social Networking

• Scott Kingery clues us in on The Ultimate Twitter Client.
• Rachel Clark has posted a great article outlining her Twitter Frustrations.
• Jarkko Laine provides some great blog resources in his post Finding New Blogs.
• Mike McGuff provides us with lots of Twitter goodness in his post It’s Twitter time @you.
• Graham Langdon has a great post on Why Twitter will be bigger than Facebook. I agree 100%. I like Facebook better than MySpace, but I like Twitter better than all Social Networking tools.

Self-Improvement, Productivity and Career

• Andrew Tokely has posted a great article on How to Impress at Your Next Interview.
• Great Houston Chronicle article about Working outside the cubicle. Make me want to quit my job and move out of my cubicle.

Sports, Entertainment and Everything Else

• Here is some Lost news.
• Interesting article on Space.com about the Missing Link Between Planets and Stars. 
• I really need to find a Bull$hit button.
• A cool Torchwood iGoogle theme.
• John Russell Plant has posted some very funny Mac vs PC South Park Style videos.
• Movie Trailers:  The Forbidden Kingdom ~ Forgetting Sarah Marshall ~ Pathology (wish it wasn’t limited release) 
• Funny Dilberts this week: 4/7 ~ 4/8 ~ 4/10 ~ 4/11

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Great Link Blog Sources

• Jason Haley – Interesting Finds
• Steve Pietrek – Links
• Arjan Zuidhof – LinkBlog
• Christopher Steen – Link Listing
• Matt Hinze – Links Today
• David Vidmar – Links of the week
• Matt Goyer – Links
• Sam Gentile – New and Notable
• Chihn Do – Finds of the Week
• Craig Bailey – On Microsoft
• Alvin Ashcraft – Daily Links
• Chris Alcock – Morning Brew
• Matthew Griffin – 5 for Friday
• Darren Stokes – Visual Studio Links
• Chris Love – Links of the Week

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Happy Surfing.