MSN has a fairly good photo hosting site.
www.streetracing.org is good if your files are already in .jpeg format.
www.onebigvilliage.com is good. They put their tag on the bottom of the pic but it is a good place to make albums for people to see.
www.imagestation.com is really good
I'm sure there are more that are good. Go to
www.google.com and do a search for 'free image hosting' and see what it throws at ya.