Does blog commenting really matter? You bet it does. Blog commenting is one of the cornerstone-type campaigns we employ here at Author Marketing Experts. It’s a great way for authors to get their foot in the door at a high traffic blog but it’s also a fun way to be introduced to a blogger and start a dialog. Here’s one way one of our authors doubled her review requests.
Also referenced in this is the following HuffingtonPost article which talks about blog networking and blog commenting: http://www.huffingtonpost.com/penny-c-sansevieri/discovery-another-buzzwor_b_3800283.html