Over the past few days, I have personally received about six emails from a phishing scam asking me to renew my Google AdWords account. The email originates from email@example.com but is really masked from the server pacobond.com, I believe.
The renewal link goes to http://yms-words.com/adwords/select/Login.htm, which is clearly not Google, so don't go there.
Here is a screen capture of one of those emails:
Annoys me how they ask again, at the bottom, for:
Please remember to input your AdWords username and password correctly NOT your email and password
So, beware of these emails.
A Google Groups thread has a warning from an official Google rep that these fake emails are going out. Do not be fooled by them.
What do I do if I receive a suspicious email claiming to be from AdWords?
Forum discussion at Google Groups.