This morning Rubenerd.com blew its web hosting bandwidth limit. Frantic, I emailed Net Logistics and despite it being a Sunday morning in Sydney, within 20 minutes they allocated extra bandwidth, and upgraded me to one of their newer plans. That’s customers service!
Checking through my server logs, over 32GiB of transfer was blown in five days due to one image request from apps.facebook.com. Needless to say, I’ll be finally adding hotlinking protection to .htaccess.
I'll be posting details tomorrow once I’ve done more research. In the meantime, thank you to Alex Paulson and all of you on Google+ and Twitter for letting me know :).