I have 2 domains that point to the same IP

[thunked]

Hello, I have 2 domains that point to the same IP.

Around the time Google decided to index one of the domains in particular.

Lets call it BlueWidgets.com

I also have DiffColorWidget.com they both point to same IP.

When this happened my Google AdSense revenue dropped an immediate 65%.

When I go to BlueWidgets.com I get different ads than on the DiffColorWidget.com They're both the exact same pages, same content same IP.. no tricks. But in AdWords people just bid more on BlueWidgets usage.

Is there a way I can tell Google that I want the BlueWidgets.com domain to be the one that is indexed instead of DiffColorWidget.com? How do I do this?

Thanks

[nickora]

Im not 100% sure on this but is it possible to put a nocrawl on DiffColorWidget.com? without effecting BlueWidgets.com?