My colleague Steven Wilssens is one of the most knowledgeable people I know personally (on .NET related topics anyway 
), and he's just started blogging! So be sure to keep an eye on his blog for some solid information about all things .NET, Indigo (WCF), Software Configuration Management, Team System and lots more!
On a job interview we were conducting together a few weeks ago, the applicant couldn't really explain the difference between passing arguments "by value" and "by reference", so Steven just used the can of soda in front of him as an analogy: if I pass the can by value to you and you drink from it, I'll notice it afterwards and get mad at you for stealing my drink (assuming the can is a reference type, like an ICollection of soda molecules if you will). If I pass it to you by reference, you can drink as much as you want - you can replace the entire can altogether so I won't notice 
So that's the kinda guy he is, check him out!