Thanks for letting me know. Lijit is an ad network that we are using for part of the traffic for one ad slot in the forums. A certificate revocation by itself is not that big of a deal. It would be interesting to know why the certificate was revoked and I'll look into that.

Jeff, I'm getting this message from my anti-virus when I bring up DCUM:

(antivirus) has blocked access to this page because the following certificate has been revoked: *.lijit.com

I think there might be a problem with one of the advertising sites?