Some of the things I am involved in.
CSS Layout News
My newsletter round-up of news and tutorials about CSS layout. View the archives and sign up.
Grid by Example
When CSS grid was a new innovation, I started a website to help people learn the specification. People still find the small examples of grid layout useful. Visit Grid by Example.
CSS Working Group
I am a member of the CSS Working Group, I was initially an Invited Expert, and am now a member on behalf of Google. I edit the Multiple-column layout and Page Floats specifications.