HARO, or Help a Reporter Out, was created to connect journalists and sources for news stories, but it's useful for much more than just seeking out the occasional quote. When you're subscribed as a source, you'll receive emails with requests for expert sources within specific industries. Replying to these requests and sharing your expertise can allow you to build relationships with journalists and reporters, contribute to reputable publications, and establish your brand as a leader in your space.
Traffic data is a great way to take the temperature of your website and marketing initiatives. When you are writing and promoting blog content on a regular basis, you can use traffic data to track results and correlate these efforts to actual ROI. Be sure to look at website traffic numbers over long-term intervals to see trends and report on improvement over time.