Unfortunately, I took a look at HARO today and they've apparently launched something very similar, rather than just the old mailing list that I was competing against. So what do you think of this? Should I just drop it or should I add features to make it more valuable? Alternatively, is there something else I could use it for?
I want something half way between google alerts and HARO. I monitor a few keywords and whenever there is a reporter asking for something that includes that keyword, I get an email.
Perhaps come up with something niche or location specific (or white labelled so it could be run out as niche/location oriented by someone else) and try a focused launch.
Another option, and this would be easier if you started min-viable-product-style with a few niches, is if you listed some "experts" then ran it past them (explain the idea and that you've added them, but can remove them if they like - make it very personal rather than spammy) and then pitch it to journalists and bloggers once there are some experts listed.
As far as "something else I could use it for", what if you opened it up a bit and let people create their own lists? Then communities (both physical and virtual) could spawn their own lists and people of all walks of life could assume the role of journalist and/or source.