Originally posted here by d0pp

Check out LinuxISO for more distributions.
Just pointing out that the site mentioned doesn't seem to be updating the ISO or the links any longer. It was a good resource to see what may be out there but you may have to either click on the site links for the most up-to-date versions (like Knoppix) or do a search for the product site if the link is broken.

At least the http://distrowatch.org/ mentioned has up-to-date information and seems to be the better option in your search.

Not sure what happened to the linuxiso.org site.