http://www.techwench.com/boomerang-extension-a-time-based-email-add-on-for-gmail-users/
Email services have been constantly improving and growing with time and we have seen the likes of Hotmail and Yahoo Mail revamping their e-mail services by providing more storage options, more control and giving more freedom to users over managing their email accounts. Yahoo Mail recently completely changed the UI of their mailing service giving it a more spice on the visual side, same goes for Hotmail Live service that is getting higher on graphics and is more user-friendly.
