The sidebar Twitter feed and the header navmap link have both gone missing. There's an approximate reference for what they looked like on the 26th of October here, in case that helps; the class name of the Font Awesome icon used for the map link was fa-rocket, and the URL it went to was http://map.mrawr.net.
Sidebar which shows how much money is there for paying server costs should be returned, I guess it will negatively affect the amount of donated money if it won´t be there for longer time.