For a few weeks now I've noticed a few people on Twitter will throw in a little icon or image into their Tweets to convey an idea beyond the 140 character limit. At first I just thought it was a secret keystroke or maybe something people on Macs could do, or something else that I was clearly out of the loop on. As I've seen a few more people do it I had to get to the bottom of it so after a little research I found the source of these new little pictures embedded in Tweets.
It turns out some guys developed a little tool called TwitterKeys that lets you include all kinds of images in your Tweets. So if you ever wanted to add some wingdings or webdings or icons or little pictures to your Twitter messages then TwitterKeys is for you. I only have one request: use them sparingly. The cool factor is sure to wear off so don't use them just because you can, use them because they help you say what you were going to say anyway...only shorter.