Unless there’s something else going on I don’t know about, DDTDigest’s disappearance from the web is a temporary event. The site is hosted on Verio. Verio’s data center’s got hit by Hurricane Wilma, power went out, backup generators didn’t work, backup generators did work, backup generators stopped working, and so various sites on their network are down, or their e-mails are down. Hopefully, Verio will get their act together relatively soon.
I believe anyone sending an e-mail to thecubsfan AT ddtdigest DOT com is going to get it bounced back to them for the time being (upside: I may get out of Taboo Tuesday predictions!), but you probably should already be sending e-mails to an AT thecubsfan.com.