A supporting member is one who contributes money towards the maintenance of the web site. Many of us feel that we get so much value--technical, rally, and entertainment--that we would be poor, indeed, if the site folded due to lack of funds. And the webmaster doesn't even beat us over the head twice a year like NPR! Here's how to donate:
You also get more from the site if you are a supporting member--you can have more stored email and can post more photos. Probably some stuff I don't even know about.