Please visit Jeff Blankenburg’s site for 31 days of Silverlight.

Jeff is a passionate DPE evangelist and happy to share his knowledge with the community in 31 dedicated postings (level 100-200).

If you have some spare time, you may also want to try his Toughest Developer Puzzle Ever. You guys out there might do this with ease. I tried a little last night and now need to look into the prime number challenge… Good luck!