I can quote you some of the notifications from SANS, but google for "SANS DNS changer" will get you the links.
Following the FBI's request being approved ISC have been given another 120 day extension to run ghost DNS servers to substitute correct replies.
SANS Newsbites is always an interesting read.
@RISK: The Consensus Security Alert is a bit more techie but gives you a "heads up" on new threats and patches.
Ouch! I haven't tried before but might suit the non-gurus out there.