SEO (search engine optimization) is a simple goal in a complex game. The goal is simple. You want to be number one. You want your website, blog, facebook listing, etc. to be listed on the first page results of anyone searching "your words". This is an enviable goal and can be achievable. But there is no "magic bullet" of a single thing to do to achieve your goal and search engines change their calculation formulas all the time. Hit page one today and you may not be there tomorrow. Search engines use many different variables in ranking results. One of the keys weighted very heavily are inbound links.
Every time someone posts a link to pages on your website it's called an inbound (coming into your website). The more inbound links you can gather the better. This is a large part of the use of social media sites such as Facebook, Tumblr, etc. Using social media is indeed a great way to build inbound links but it sure takes a lot of time and finesse to do it right.
There is a short cut and it has the benefits of promoting your internal business news. It costs money to use but it could well be worth it to you. We're talking about online newswire services. These online services have relationships with dozens to thousands of distribution channels for you. There are lots and lots of online news sites that make their money from posting news. The newswire services supply that information. It is all an automated process. The newswires transmit the information and the news aggregation sites post it. Now normally in a PR campaing you're looking to get picked up by mainstream media but let's face it getting the New York Times to pick up a story about you're little endeavor is just not going to happen. So when you examine the online newswire services don't get illusions of grandeur because the New York Times will be on their list. Instead you'll be looking to get your press releases on as many online sites with links back to your websites press release as possible.
Newswire prices will be based on how wide of a distribution you're shooting for. There are smaller players who give you some things for free. You can give it a try and get comfortable with the concept.
Below is a list of some of the larger newswire services and by the way, each link below is an "inbound" link to them. You get the idea right!?