The history behind Easter postcards

Easter is around the corner and there is much to learn about the tradition of sending cards at this time. There are also lots of links like this one where you can see some beautiful vintage Easter postcards.  What about you? Do you send postcards or other types of written greetings at this time? What images are usually depicted on them in your culture?  Is it the Easter bunny?  Why not post a comment with your family's tradition or the tradition in your country.  We'd love to hear from you.