Have you noticed the new widget at the top of the page? If you're reading the main blog page, probably not. But if you click on a specific post, you'll see something that looks like this:
It's a fundraising tool that matches social network sharing with donations. Every time you share one of my blog posts, we get a donation. So share away! Go find old favorite posts that you haven't shared, and share those too! It's a quick and easy way to help out Mother Jones.