Please do not use grey text on a white background. Use black. Grey is harder to read, causes more strain on the eyes, and makes me less likely to read what you say. Really. I recently realized that one weblog I used to read a lot I wasn’t liking nearly as much recently, not because the content was worse, but because it was actually more work to read and that made it not worth it.
So don’t do it. Please. Or I’ll just stop reading your stuff (maybe not even consciously).
And yes, I am aware that this blog uses it, by virtue of the default wordpress theme. I only just realized that, and am fixing it now.
Edit: So a wordpress update broke this for a few days. Fixed now.