Pointofmail.com - Know who, when and where read, clicked and forwarded your email.
showFoto - ShowFoto is the standalone image editor of the digiKam project.
ReadNotify - ReadNotify enables the user to know when email is sent and the reciever reads the email.
PhotoDemon - Lightweight portable BSD licensed photo editor for Windows focused on performance and usability.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
PhotoFlare - Quick, simple but powerful Cross Platform image editor.