Yes, the one that I and many use is photobucket.com. There are others. There are several possible ways to reference your pic. One is identified in the sticky post at the top of this section. Others are by selecting a form of reference in photobucket and copying and pasting that code in the post. You will see if you look at photobucket. Good luck. /forums/images/graemlins/cool.gif
I use ImageShake and I love it. Very user friendly. When ever I post a image on this site that's the hoster of my image. I have heard good things about photobucket as well but have never used it. You won't go wrong with either.