title: Where can I learn about MEF?
body: <p>I watched the DNR TV episode with Glenn Block and it looks like MEF would be useful for my company.  I am trying to find out more information on it's strengths and weaknesses and some sample projects that use it.  Are there any good blogs/tutorials on using MEF?</p>
  
  <p>Note: I use C#, so if the examples are in C#, that would be awesome.</p>