4 SEO articles needed, only experts apply!

Closed - This job posting has been filled and work has been completed.

Job Description

I am developing an online tool for web developers which is http://xml-sitemap-creator.com/ website.
I need an expert contractor with good command of English to write articles in below areas:

How to improve my HTML?
Google Spiders
SEO Tips
Benefits of having a sitemap!

Each article should be around 400 - 500 words and contains strong SEO tips to introduce the website.
I don't want copy pasted material from internet, I want something unique and strong articles. I will check your sentences and you may provide the links that you got idea from.
If you well done with this job I will hire you for writing articles for my other website which is http://www.heliastar.net/ and upcoming works.

Please follow the structure and apply, Filipinos are welcome to apply!

Happy bidding!