get a TWO free links
Google anounced that the clickable area in any Adsense block will be reduced from
the whole ad to only the link text and url.
Blogoscoped has put up a nice picture to
show the differences between before and after.

Now I this this is one of the most major change rolled by google for it’s prodcts in the last years…
Apparently this will corrupt a lot of adsense scraper spam business models.
On the other hand this will def. increase the value of a click as it should avoid those “accidential” clicks
from ad pages with 3 huge ad blocks, and in turn increase the overall value of the Google Adwords program for Google.
Comments
RE: Adsense clickable area - and publisher earnings reduced
This is definitely major news. Minimizing the areas on which you can click will greatly reduce accidental clicks, as you say causing the value of the click to increase for the advertiser, but the person hosting the ads will reap a lesser income.
I often write ad copy for use in PPC campaigns and I've found a product that makes testing ads for profitability easier. The tool is Glyphius. It really saves time.
Google Adsense Changes
This should be good news for advertisers but I bet those churning out "adsense sites" might be crying the blues.
I agree Google's move should cut down on accidental clicks - a nice thing if you're paying for those accidents!
Bernie you're right on about using Glyphius for adword ads. With only a few characters to work with, you need to make every one count AND grab as many interested prospects as possible. Since Glyphius likes wordy titles - scoring high with tiny headlines is a feat - but worth the effort.
Cheers,
Chet