Right, so, we've got the calendar set up, and everyone aside from Penguin now has access to it, so I'm going to have you start using it.
Here's how this is going to work: everyone puts up any window of time they even THINK they'll be available for two hours or more for D&D. I'd prefer that everyone keep the calendar up to date with as much as two weeks in advance (although I'm not expecting... certain people who clearly work for bureaucratic morons to be able to do that consistently...)
So, all you have to do is use Google Calendar's highly accessible interface to add notes accordingly. Just put your name on your block, don't mess with anyone else's, and if you like, pick a unique colour for your entries. That last one isn't essential, but it may make it easier for everyone to read.
I've cleared everything aside from what I'm calling my "standard" time just for the sake of getting things rolling; I'll update accordingly as time goes on. Don't worry about anyone else's posts, and just put every window of time you think you'll be available. I'll be the one to worry about actually scheduling the sessions.
I believe that once everyone's accustomed to using this system, it will be a lot easier than our previous communication methods. Firstly, because everything is on the screen for everyone to see and there's no need to sift through a bunch of forum posts or Skype messages, and secondly because it's
Google. All you need is an internet connection and it's a matter of a few seconds to do everything you need; you can do this crap on your phone if you want to. Thus, I honestly don't think it's at all unreasonable to expect everyone to adapt to using it regularly.