This is repulsive as a concept and a business.<p>The internet is already polluted with ads. Why bring them to personal email communications?<p>Why can't we have any space that's free from commercial manipulation?<p>If this becomes widespread, I'm going to write a Gmail plugin to detect it and send it to spam, where it belongs.<p>If you're requesting someone's attention with an email, at least have the decency and respect not to <i>monetize</i> the attention they're giving you.