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And before they knew it, the friends started to click on advertisements thinking they were helping and sooner than later most of these publishers found themselves banned from Adsense
Even though Adsene Message panes shows this message to learn more about Friend Connect in connection with Adsense but in my opinion its a double edged sword that can cut your Adsense account into pieces and you won't find a glue to put it back together
I use friend connect on one of my otherwise static html sites. It's fast and easy and ads commenting options that otherwise would require more programming.
Didn't use the personalization options. But it's brand new, so maybe later.
If you are notifying your existing inner circles about your site through Friend Connect thus the invitation will likely to bring in people from the circle you know.
As I stated many people do have friends that while visiting their friend's site opt to think it would help him/her with just a click on an ad