Have you noticed that AdWords changed they way they show ad display URLs? They are now all lowercase, regardless of how you set-it up in your account.  Before the change, you were able to inter-capitalize an ad’s display URL ExampleURL.com. After the change, it will show as exampleurl.com in your ad. Apparently, the AdWords team did internal testing and found that lowercase Display URLs help increase CTR.  The data was conclusive enough to overturn the previous best practice of inter-capitalization.