Press releases play a very important role in SEO and web site marketing. Currently, one-way links are more valuable to your search e rankings than ever before. This is due to the fact that two-way links - most often referred to as "reciprocal links" - have decreased in value with regard to Google's "Page rank" system, with most others soon to follow if they have not already. With that in mind, playing an active role in generating news for PR web can serve as your best resource for getting one-way links and generating new traffic to your site without paying a dime. Be aware however, that credible PR web sites have strict criteria for the content that they publish. For example, it absolutely must be newsworthy, grammatically correct, without spelling errors, it must sound professional, and it must give the impression that a decent amount of time was put into it.