The NY Times reports that after a brief hiatus last year, spam is back up to 94% of all email traffic.

“What the spammers have been using to rebuild is more technically advanced than what got taken out and is itself a more resilient technology,” Mr. Swidler said. “It’s unlikely we are going to see another event like McColo where taking out an I.S.P. has that kind of dramatic impact on global spam volumes.”

Postini is also reporting Tuesday on a new kind of spam called location-based spam. When gullible users click on a link in a spam message, they are directed to a Web page that contains a fake news headline and a purported video describing a nearby crisis, using the user’s I.P. address to identify the nearest major city. When the now curious and gullible users click on the video, their computer is infected with a virus.