Remember: those are really custom cards, so you can easily transform any free ecard in a free birthday card, for instance. Most of them are animated flash ecards too. Explore your creativity and enjoy funny Birthday cards!
There are traditions of surprise birthday parties. This sometimes causes people to feel ignored because it appears their birthday has been forgotten, when actually it has not been mentioned because a surprise party has been planned. Conversely, some people do not mention that nothing is planned for their birthday, because they expect a surprise party.