A link list is what Greenguy, me and lots of others run for a living.
There is also TGPs which are very similar except they list galleries instead of free sites.
Some places, like Tommy's Bookmarks, are hybrids of a TGP and a link list so they list both.
Link lists list free sites. Usually a free site is four pages and has 20 sample pics.
TGPs list galleries which is one page and has 15 sample pics.
Make a folder on your server, make up some free sites and galleries to put in it, read the rules at each place and start submitting.
