Nimisis.com is now a "dofollow" blog. That means that any outlink to a website left in the comments won't have the "nofollow" tag. To explain, a link with the "nofollow" option tells search engines not to follow the link and therefore won't assign the external website any extra ranking. So now, unlike most blogs out there, this option will be omitted. As long as the comments are worthwhile, it doesn't seem right to give the contributer no credit for their trouble, hence the change.
This is only on a trial basis, as there is a risk of abuse, but hopefully it'll be permanent!