Saw this at PRO Blogger (not related to this site)

"Yesterday it was revealed that AdSense were making the clickable portions of their Ad Units Smaller. Today we’re seeing these changes rolling out on different publishers sites. It seems that this means different things for different ad unit sizes. For example 468×60 and 234×60 ad units still seem clickable on the text of ads - perhaps because they don’t have a URL on these ads. All other ad units that I’ve seen just have the title and URL clickable.

So my question to you is - have you noticed any decreases in CTR yet?

We probably won’t see the full impact of the changes in today’s earning results as they’ve been rolling out during the day - but my own CTR is lower today than any other day for this month. Having said this - I’ve had lower days (2 were lower in October) - so I won’t really know what impact it’s had for a few days as things do tend to rise and fall."

I have to admit... I've also noticed the change. How about the rest of you? The only good thing about this might be the fact Google's Adwords advertisers (which I'm one of by the way) will pay more per hit. After all, this cuts way back on accidental clicks by users.

Read more and view samples of the new clickable regions: Here

Read Google's official announcement: Here

If you've noticed a drop in your website's page rank lately, you're not alone. PROnetworks and many other sites, including the Washington Post, Forbes, and others have watched their Page Rank (PR) go backwards. Luckily, PRO only dropped a notch from 6 to 5, but others were hit a lot harder, some as many as 4 page rank spots.

Take a look at some of the major sites affected:

· http://www.washingtonpost.com/ PR7 to PR5
· http://www.forbes.com/ PR7 to PR5
· http://www.suntimes.com/ PR7 to PR5
· http://www.sfgate.com/ PR7 to PR5
· http://www.statcounter.com/ PR10 to PR6
· http://www.masternewmedia.org/ PR7 to PR4
· http://www.autoblog.com/ PR6 to PR4
· http://www.pro-networks.org PR6 to PR5
· http://www.engadget.com/ PR7 to PR5
· http://www.problogger.net/ PR6 to PR4
· http://www.copyblogger.com/ PR6 to PR4
· http://www.joystiq.com/ PR6 to PR4
· http://www.tuaw.com/ PR6 to PR4
· http://www.searchengineguide.com/ PR7 to PR4
· http://www.searchenginejournal.com/ PR7 to PR4
· http://www.johnchow.com/ PR6 to PR4
· http://www.quickonlinetips.com/ PR6 to PR3
· http://weblogtoolscollection.com/ PR6 to PR4
· http://andybeard.eu/ PR5 to PR3
· http://www.seroundtable.com/ PR7 to PR4
· http://www.blogherald.com/ PR6 to PR4

Source

Read More Here