Tad Patzek's still around and writing about oil, un-sustainability - the whole macro view. However he's now resigned, like many other peak oilers, to the sh*t completely hitting the fan, with everyone more or less clueless or in complete denial as it all unfolds.
I find this chart of his very illuminating on getting to grips with the oil picture (below is the commentary)...

$this->bbcode_second_pass_quote('', 'I') set up this model of global oil production probably in 1995, or so, and never changed its parameters. I have only updated the blue data curve, which is a superposition of the old historic data from a variety of sources and the EIA data. By a lucky coincidence, or the Central Limit Theorem, or both, the world production of crude oil and lease condensate has been quite predictable for the last 17 years or so.
I want to point out that there will be future small Hubbert curves for the new Iraqi oil, GOM oil, the Arctic oil, etc., but the fundamentals will not change, just as they are unchanged for the Norwegian sector of the North Sea shown in my earlier post. At the time scale of this chart, the global oil production plateau surely looks like a peak.