SEMRush is a service that analyzes the positions and the selection of keywords for your domain name. There are more than 80 million keywords for analysis of top 20 American, German, Russian, Spanish, English, French, Italian and a Brazilian version of Google in their base.
You can register new and can login using the details. You will get 10 results per request, 10 queries per day. If you feel the shortage of data for analysis, then you can upgrade here: http://www.semrush.com/prices.html.
The following is the screenshot for the domain name adobe.com I just chose Adobe as I have tested and used their products and quite like them since we use them often in eLearning industry.

Click on the different types of reports such as Google keywords, Adwords keywords etc available on the L.H.S. under the title ‘Reports’. You can find out the Google keywords, Adwords keywords, who your competitors are in Google and in Adwords.
When you click Adwords Ad texts, you get adobe.com's unique Google AdWords Ads copy.
Therefore in order to successfully promote your site both organically and in Google Adwords you can give a try for SEMRush as it is worth exploring. On the downside, SEMRush uses Google SERP results. They have not taken other major search engines like Bing and Yahoo into account.