It is done to make them realize that even though they may be far away by distance, they are still close at heart. By sending photo cards, you can personalize the greeting. Plus, because 'pictures can say a thousand words' you can keep them updated about your family with a picture rather than writing a long letter about it.
Some Unique and Creative Christmas Photo Ideas
Either go with the usual red and green or you can have a gold and white theme. A tip for this idea: have the entire family dressed in beautiful flowing white, soft fabric garment, bordered with golden lace. You can stand using a window with frosted decoration as a backdrop to complete the look.
Select one of the best pictures and use them as your Christmas card photo. It could be just a beautiful location or a group photo or something totally random, but pleasing to the eyes. Get copies of this picture made. Take it up as a craft project, involve your kids and paste the pictures on the card.
In order to make these ideas more effective, you can write or get some Christmas poems printed inside the cards that you're going to send out. Have a wonderful time making some wonderful memories.