Where is the best place to find out which bloggers/journalists/writers cover different topics?

People hate calls. People hate emails. People hate mail. Do you really want your first impression to be that of an interloper and a pusher? Then again, most recipients aren't event going to look at what you send them. What is your niche? Office managers for private family healthcare providers in Peoria? Athletics department directors for NAIA schools? Sales managers at wholesale car dealers that make over $180 million per year in gross revenue? Know your niche and define your buyer (and it better be the CIO or VP). Is your buyer female or male? Older, middle age, or younger? What about her or his college education? What does he drive? Where does he live? Where does he eat his lunch and get his coffee in the morning? What does he read? Etc. Go to your buyer. Find congregations of your buyer. Professional associations. Conferences. Meet-ups. Trade shows. Offer to do free presentations--not on your product but on best practices or trends you observe in the industry. Make your presentation about solving problems your buyers deal with every day. Write blogs or columns for media they read. Again, focus on what they need/want to read. You will have a hard time keeping enough business cards in stock and click-throughs from your byline. This is a true "targeted outreach campaign." Don't waste your money and time with anything less than this. You're going to do great. Please let me know if you'd like to talk about it more!

What? You are obviously unqualified for this position. You need to quit and let someone else do it.

Retention - if you build something people want/use AND come back and use often, then you can usually figure out a business model to make it work (if there's a big enough market).

Build a body of work in the form of a blog. Much depends on the size and scope of your company, but branded journalism can really make a huge difference.....

Before you spend $ or time marketing your service / website, ensure that your brand itself is quite strong. For example, if your name or domain is awkward, ambiguous, or off-putting, then every dollar and hour you spend promoting your brand will work less efficiently in your favor than if you were spending the same amount of money and time marketing something more robust and attractive.