Special thanks to otto for this tutorial!

 

Check out my sig.

Anyone else want to set that up?

Thoughts on formatting? Something smaller might be better, but it would have required more effort. This was just a quick 'n dirty attempt to get something working.

This is what I did.

1. Go to the publish tab.
2. Click "More publish options"
3. Set the items like in the screenshot.
4. Paste the code into your sig.

Now your sig will automagically update when you update your 61DC (google) spreadsheet.