SERPRank plugin allows you to track where your websites rank for an unlimited number of keywords on Google. If you have ever manually entred your keywords looking for your website to see where you rank in to Google and clicked through the results, you will know how time consuming and slow this process can be, especially when you own many websites and you want to check high number of keywords for every website.
Demo: http://codecanyon.net/item/serprank-track-website-ranking-for-unlimited-keywords/10439993