I know I'm probably about five years behind the time here, but I just discovered Google Alerts. Basically what it does is notify you every time a certain key word(s) occurs on the internet. You can also specify what type of medium you would like for the key word to appear in (blogs, the news, etc...).
For independent authors, this is an invaluable tool. It makes it really easy to find bloggers that do reviews for stories in your genre. Not only does it save you the hassle of having to sift through thousands of search word results, but you also assured that the blogs you do contact are active.