In my office, I worked on an ecard module for our Dotnetnuke based CMS (content management system). This CMS has been used to build websites for most of the Adventist Health System's hospital.
Metroplex Adventist Hospital (www.mplex.org) is also built using this CMS and uses the ecard module that I build.
This ecard functionality is currently used by so many peoples to send ecards to the Sgt. Kimberly Munley, a civilian office. She is in Metroplex Adventist Hospital. This is giving a spiritual feeling to be able to contribute to a good purpose.
You can also send Sgt. Kimberly Munley an ecard at http://www.mplex.org/PatientsAndVisitors/SendAnEcard.aspx