Constructive CriticismConstructive Criticism is a cyber tool for effective letter campaigning.
A letter can be composed concerning a particular issue to be sent to a politician or company. The letter is then saved on your site, and looks like any webmail's compose page. Users can edit the letter, add their personal signature and return email address. These fields can be saved in a cookie meaning they can send a letter in two clicks next time around.
The software is easy to install and is free software - covered by the GPL.