Make it easy for people to participate in your campiagns by keeping the text of your emails short and to the point. 100 words is plenty.
When emailing people to participate in your CitizenSpeak campaign, don’t bury the “take action” part of your email at the end. Within the first couple of lines, ask them to go to your campaign’s web page address. You can spend the rest of the email explaining to people your cause.