To post pictures or graphics, it has to be stored online somewhere (photobucket and similar services for personal photos). Then just get the URL of the image/picture and hit the image button to the left of the message box when inputting a message. Then hit the Preview button to check things out.
As for videos there isn't a feature to embed them but animated gifs can be posted just like an image.
Think of the haters in your life as sandpaper; they’ll scratch you up time and time again but in the end you’re polished, smooth, and spotless..while they end up useless
We make a living by what we get, but we make a life by what we give.