I used to load images unto free image hosting services like FreeImageHosting.net & ImageShack. Being free, you can expect the free image hosting service to be on & off on occasions. For example, images are not showing up on your blog or website, you have trouble logging on to the image hosting websites, & etc. It can be irritating. I stopped using them when I found out that one could actually be paid have images hosted by a company. More about hosting images.