Hello Namita,
What kind of articles you are looking to put on your website? We have several of them posted by either ourselves or our demo testers at our PHPKB Knowledge Base software website.
Have a look at our demo section at
http://www.knowledgebase-script.com
You can use them for your website but you will need to keep a link to the article source URL of our demo section.
Sincerely,
Ajay Chadha (Director)
Chadha Software Technologies