Yesterday I gave two sessions @ DevDays NL:

 

On was a Silverlight End to End application, about belgian beers ;)

 

The other was on using REST and JSON with WCF

 

Both can be found here

(oeps, looks like the link dropped off)

http://cid-735d0892d4d1406c.skydrive.live.com/browse.aspx/DevDays%20NL