Most webmasters and SEOs are obsessed with Google web search algorithm updates but very few talk about when Google updates their AdSense algorithms.

A WebmasterWorld thread asks if there is such a thing as an AdSense Algorithm update.

Personally, I think there is. There are algorithms for everything Google does, especially AdSense. There are AdSense algorithms for:

Pricing
Ad matching
Ad formatting
Smart pricing
Display versus text ad placement
Spam fighting
and much more…

I am confident Google is routinely updating these algorithms to constantly tweak and improve them.

Forum discussion at WebmasterWorld.