I've had some success with http://www.helpareporter.com/ http://www.helpareporter.com/ Reporters post there looking for sources for their stories. If you match

I've had some success with http://www.helpareporter.com/ http://www.helpareporter.com/ Reporters post there looking for sources for their stories. If you match what they are looking for, you email the reporters. I've gotten myself and my co-founder quoted in a bunch of publications this way. Hard to tell how much traffic they've generated though since it's been mostly print publications, so no link.