Yes, It’s true. Today on most of the blogs the google ads stopped showing and some public service ads started appearing. The news became more truthful when some blogger reported about this on Webmaster Forums like DigitalPoint. This problem can also be seen on my blog. See this screenshot:
Google explains properly why PSA’s appears on a blog. See here.
I hope Google solves this problem asap because many bloggers are getting irritated by this situation.
*Update:
The Issue has been resolved
See here in the adsense forum.
Since it’s morning in US therefore Google officials are sleeping right now..So they can’t reply to this issue..Therefore we will have to wait few more hours.