Press Release is the major part in Viral Marketing for website without more effort from owner end. If you are submit your Press Release to some of good Press Release Distribution sites & it will be picked up & published at other places automatically.       1.  Its increase your site indexing in Search Engines (Like Google, Yahoo & MSN). 2.   You can get authorized site incoming one way links. 3.   To improve keyword ranking in SERP’s. 4.   To Decrease Alexa Rank of your website page and increase Google Page Rank. 5.   To generate ethical audience from your content.