Congratulations and keep the contributions coming!!
It's funny how at first people didn't really contribute many shaders (probably because not many people had the shader knowledge? I do remember quite a few shaders from ello and rhuarc) and now people don't want to sell them, but instead just give them away for free.
That's an awesome development and even though I really don't want to take any credit for what you did,.. a little bit this generosity started around the time when I contributed some of my post processing shaders. Again, awesome that you've contributed this much already and I hope you'll continue to do so in the future!