you can use this website TinyPic - Free Image Hosting, Photo Sharing & Video Hosting
that makes tiny pics, in the resize box you'll want to choose AVATAR Size (100x75)
here's a sample i just made to show you...
this is the normal size of the picture...
Democracy is two wolves and a lamb voting on what to have for lunch.
Liberty is a well-armed lamb contesting the outcome of the vote.