Have them both point to the same place. You don't gain anything having a
.org or a .com extension. The important thing is they find the website. Of
course you could always have it set up as a backup. When
Reactos.com<http://Reactos.com>gets slashdotted, the people who know
about it could get to
ReactOS.org (assuming they are on different web servers).
My 5 sentences.