In my industry I'm seeing a new beta ad, search box embedded within the ad. Seems like it would increase clicks. Noticed it in May of this year.
Does anyone know how long beta ads take before they make it available to everyone or remove it? I don't have a rep, so I can't try it. The ad stands out and seems like it gets many clicks. Unfair to other advertisers who are unable to use that extension.
Looks like a communication extension that moves your site's search feature up into the AdWords ad... makes me wonder if it's a beta for folks who use G as their site search vendor (makes sense they'd start there).
If in early beta, it's likely those playing are gagged by NDA, suggest you talk to your G rep for more info. I haven't read anything about this, so i'm guessing it in early, gagged beta phase now.