Private donors generally prefer to remain anonymous, but commercial donors generally like to get something in return for their money. Would you like to see your logo on every page of the Emerald City site? There's a reason why we call our paid ads section "Sponsors" rather than "Ads". Commercial advertisers are helping this magazine to remain free to readers, and they deserve credit for it. For more details of how to sponsor this web site, please see our Ad Rates.