Articles about Webcrawlers

I am looking for an experienced writer who can provide original and unique content on a variety of niche subjects provided by me. The quality of the writing is very important and must project a professional image. I will need articles related to WEBCRAWLERS, of approximately 400-500 words each. I will send ALL the subjects after choosing the bid winner. You must to provide an page title, page description and page keywords. All those articles must be well optimized with SEO techniques. As stated previously, each article needs to provide fresh and unique content. It must also be understood that upon payment, I alone hold the copyright for each completed article. It is unacceptable for these articles to be sold or distributed to anyone other than me. Hopefully it goes without saying that plagarism or stealing content for these articles from other copyrighted works is strictly forbidden! I would like to see examples of articles written by anyone interested in bidding on this project(RELATED TO WEBCRAWLERS).