PR articles will help you to get into customer awareness and build your brand and the reputation of your company. If keywords are correctly selected in the text, and well-placed backlinks, these texts are an effective tool for internet marketing.
First of all, PR articles should be quality and unique. Duplicate texts are rejected by search engine robots, and higher positions will not help you. If you are publishing the same article to multiple PR sites, you must modify the text to make it duplicate.
Only quality and unique PR articles are robots well evaluated, and will help the site to a higher position. The Web, which is directed by high quality backlinks, is evaluated as beneficial and interesting by search engine algorithms.