Made my account yesterday, and since Worlds is down, there's no better time to jump in. Is there any place I should see or anything useful I should know?

I've had an account for a couple months but only used AW for an hour at most, I know as little about it as the next guy does. lol

I've checked out a bit of it. + and - on the numpad lets you fly, and that's all I know that is useful.

Just figured this out. If you want to get to a specific point in a large world (like AlphaWorld), there's an option to teleport to any coordinate inside said world.

Click the "Teleport" menu in the top-left of the window (next of "Tabs", of course). There is an option called "To..." in the dropdown menu, which when clicked allows you to input a custom pair of coordinates (with letters specifying 2 directions). If you want to get to the center of AlphaWorld like I did, do that instead of holding down the forward key for hours on end.