Could you please add a block list for the most common internet junk domains e.g.
.local, .belkin, .home, .lan, .invalid .domain, .localdomain, .wpad, .corp, .maps, .html, .router, .host, .mshome, .htm
As numerous research papers have shown e.g.
http://www.circleid.com/posts/20090618_most_popular_invalid_tlds_should_be_reserved/
Requests for these domains consume significant resources on the root name servers so stopping them early would be a good thing to do and improve end user experience.