The Preheader references the area before the main content. It's an excellent opportunity to grab a bit of extra pre-content web real estate. It's got a degree of prominence in the inbox, so it would be a waste not to use it for promotional purposes. Try popping a couple of links in here. Some companies find that they get the most clicks on links within their preheader
If you do, you are in luck! We offer co-op solo ads so that you can help everyone on your team get some high quality traffic, at an affordable rate! We manage the entire process and can customize co-op packages for your entire team. From start to finish, we provide consistent customer support and updates. If you are interested in setting one up for your team, contact us right away.