Have someone thought about the newsletter for users? If you have a lot of cats it is very uninteresting for users to use this newsletter, cause they will get all the new entrees;
so there should be a form , where a user could choose from which cats he could get the new links.

I have about 4000 Visitors at my site a day, but the less are interested in this newsletter. If i could improve the value of it; they would be more interested i think - and thats important cause this function could be just another good tool to increase traffic.

Robert