Writing press releases takes a certain writing talent. First, someone has to be able to synthesize a fair amount of information, and then be able to present it in a succinct and compelling manner so that readers want to keep reading, even if the topic is rather dull. Writing optimized press releases adds a different challenge, which is to include keywords that the search engines will pick up and put into the intended categories for searching.
Press releases are a good way to add credibility to a web site. The search engines like press releases because they mean that someone is paying attention to the site, and a third party is discussing it, even if it is the site owner, which the search engine bots will never be able to figure out. If you want to boost your website's position in the vast number of pages that the engines list, try writing press releases at least once or twice a month. Decide on the critical keywords, and use those for optimized press releases that will help our page position a great deal.