Not sure if this is an intended change but the footer on SU and SF have "lost" the links to the other sites (SO shown for comparison). Is this done on purpose or down to the number of sites that are appearing in the footer?
EDIT 15:23pm GMT I've also noticed that the "blog" in each footer always points to blog.stackoverflow.com, rather than the per-site blog (unless I've gone mad and they've all been merged, which would be useful nevertheless)
Windows 7 Enterprise, 32-bit, IE8.