What is Help-A-Reporter (HARO)? How does HARO relate to the concept of source filing?

What will be an ideal response?

Source filing refers to how marketers reach out to connectors to let them know what kind of help the firm's experts can provide should the need arise. It is simply making an effort to establish yourself as an expert with connectors in a way that will get them to keep your information on file for future use. To help foster expert/reporter relationships, author and marketing guru Peter Shankman launched Help-A-Reporter in March 2008. HARO, which connects journalists with the sources they require using a social media platform, has a growing stable of journalists from around the world who use the service on a daily basis. This free service grew to more than 40,000 members before the end of 2008.10 This is just the first of what will be many attempts to merge source filing with social media. The marketers who master the use of these tools are likely to be the ones who excel at MPR.