After the post below about email marketing, we were cajoled into sharing some of our creative in this arena. All of the work went out through Constant Contact, unless otherwise noted and most of the CC templates included links to registration forms and donate now buttons and whatnot. As soon as we get the quantitative info from the client, we'll share that too.
Our simple rule for email creative, a great image (not too large) and fun copy. Click on this link to see a big batch of e-creative and let us know how we did: http://woodstockorganicconceptscasestudies.blogspot.com/2012/10/creative-case-study.html