Yeah, it is all part of their new security rules. Any sites now with the words forum, blog, or another word that escapes me now in the html search definitions or title definitions are blocked. It is causing some headaches though, because there are some work related sites that are forum based and these are getting blocked so they have to go back on an individual basis and allow for each individual site. A real PITA.
Ask them if you can use the site during your lunch breaks
Getting back into the thick (or rather thin as in thinning my paints) of it, not picked up a brush in some time so this may hurt a bit until I get used to the feel of them again