greenmind.com, greenmind.net, morelight.com or morelight.net are taken by non-Dino-related sites, but they are obviously idle, so the owners might sell the name.
morelight.net and more-light.com seem to lead to an existing site, but more-light.net, morelight.info or greenmind.info are still free…
Here is a list of Dino fan sites, many of them with song related names:
http://www.freakscene.net/links/Fan_Sites/ 
…there is already a Dino tab site called "What Else Is new" 
(and there is mascis.org
)