Prior to the proliferation of online greeting cards, I can honestly say Thanksgiving was not a holiday that I associated with Greeting Cards. People didn't send them to me and I certainly didn't send them to anyone. Maybe if I was invited to someone's house I would include a Thanksgiving Card with my cranberry sauce or bottle of wine.
Now, thanks to services like American Greetings, Blue Mountain and my personal favorite Jacque Lawson, I am apt to share a holiday greeting.
Here's a link to one my friend Susan sent. It's great.