How can I search for sites running Google Ads?

Could Gigablast do it?

[sahuman]

Is there anyway I can search for sites on the internet that run adsense/adwords on their pages.

I need to look for sites on widgets that run the adsense/adwords program.

I understand there are SEs like Gigablast that search meta tags - any ideas on how a specific javascript tag like the one adsense creates can be located?

[Sanenet]

You could try searching for "Ads by Goooooogle" + widget specifications?

[EVOrange]

Try Googspy.com

EVO

[robjones2]

Why not simply search for those keywords on google and see what adwords come up?

[universetoday]

I think you'll need something that lets you search source code, since the Adsense ads are Javascript. That "Ads by Google" won't be indexed by Google.

Are there any tools that'll actually let you do that?