Lost? – What are you doing wandering the corridors at night?!
The old o2js.com blog is in process of being merged.
Chances are that what you are looking for has been removed,
and it will be added some time in the future.
If you are desperately in need of an article, just shoot me an e-mail and I'll try to send you my most recent backup as a raw html file.
Thanks for your patience,
image credits: Ash Huang