Writing and distributing articles for SEO purposes

It's a long know fact that unique content articles pointing to our site is one of the best SEO measures you can take.
sometimes it's better for your site if you write a unique piece of content and send it to other sites, instead of publishing it on yours.
While Google scan the web and finds a new article, talking about topics related to your site, and finds a link to your site at the end, it will give your site “credit”.
This is a very good way to increase your site Google PR and increase your organic search results.
There are a lot of companies and individuals around the world who will write a unique article for you for only a few dollars.
It's a good idea to have someone like this at a regular contact that will deliver SEO article for you once or twice a month/week.
You can then spread it around many article sites and related websites, which are always happy to get new content for free.