New ad format?

ad search box

[shyspinner]

I saw an ad on my site today that was new and I'd not seen before. It was a search box where the user could search for the ads they wanted displayed! I took a screen shot, and it's posted here:

I have this slot set to show an 468x15 text ad.

Not sure what to think of this and also wanted to find out if anyone else had noticed these?

[edited by: jatar_k at 1:02 pm (utc) on Jan. 25, 2008]
[edit reason] no urls thanks [/edit]

[iwannano1]

Not a new ad format, I saw this almost 2-3 years ago. If there are no ads to display, it will show search box

[shyspinner]

ack...okay now I feel like a big adsense dummy. Guess I just assumed an alternate ad would be an image. Thanks for explaining!