New Google PPC OptIn

I did a search and found an optin on a PPC sponsored link, thought that was interesting!

Talk about building a list.

According to Google it's called the "Communication Extension". ( ad extensions)

This can come in a few different flavors, such as:

• Request a Call - These allow a visitor to input their number and request a call from the advertiser.
• Request an Email - Similarly, by clicking on a plus box in an ad, the searcher can request an email from the advertiser.
• Sign Up For a Newsletter - As pictured above, you can simply sign up for an advertiser's newsletter right in the search result, without ever going to a landing page.

have not played with it myself. I assume you might need to send special request or be invited. It was in beta for few months. will check out Adwords blogs.