Sometimes it is also considered as strategy to get out of google sandbox.  We assume that you are involved in ecommerce and getting leads from the internet plus potentially in internet click through advertisement campaigns.  If all mentioned is about you, then please read the following small article:

1.       News writing.  Here you have to be familiar with page rank theory and page keywords placement recommendations.  To be short, you should consider be very natural in your writing, but you should write about the topics where you are expert and try to be reasonably laconic and structured in what you are writing about.  Also, try to include several keywords into news header – this will help internet search engine spider (googlebot, msnbot, slurp) to classify it more precisely

2.       Illustrative Pictures, photo files, movies, etc.  Modern PR is as we believe in transition from static newspaper article to action.  Internet bandwidth nowadays allows you to quickly download and watch both pictures and films or small clips.  Hard disk space is also symbolic, so major media portals allow you to upload GIF, BMP, JPG, MPG, AVI files as attachment to your blog

3.       How often to publish.  This really depends on your product or service popularity and competition on the market.  If you are selling something absolutely unique, you should just publish maybe five articles about it and get most of your potential customers to find you on the web.  However if you are breaking through severe competition, then you should contribute on a daily or at least weekly basis