Check out Brian Pipa (Teenormous) on Mixergy about 35m20s into the interview... great example of persistence when dealing with competition (Gary Vee) who were getting big coverage on TC etc. PR coverage on these sites isn't the be all and end all. If your market isn't other tech people / very early adopters that kind of coverage is fairly irrelevant...
http://mixergy.com/brian-pipa-teenormous-interview/