A new search engine dedicated to seeking press releases has been launched.

PRFilter, said to be the first press release search engine, indexes thousands of releases each day and is designed to save journalists and bloggers time.

Results are ranked based on a combination of relevance to the terms searched for and the number of people PRFilter’s patent pending Active Interest Technology considers a release to be relevant to. So the more people PRFilter thinks a release could be relevant to, the higher it is ranked.

Adam Parker, chief executive of RealWire, the company that developed the application, said: “In a world where relevance is increasingly at a premium we need tools that focus on increasing the signal to noise ratio, not simply amplifying it. PRFilter seeks to do this in a human way by basing its automated predictions of relevance on the topics that journalists and bloggers write about the most.”