title: How can my database be improved?
body: <p>I am trying to store news articles. I have the three following tables:</p>
  
  <p>categories (<strong>category_id</strong>, category_name) </p>
  
  <p>websites (<strong>website_id</strong>, website_name, website_url)</p>
  
  <p>articles (<strong>article_id</strong>, <em>website_id</em>, <em>category_id</em>, article_author, article_pubdate, article_title, article_description, article_content)</p>
  
  <p>Key: <strong>primary key</strong>, <em>foreign key</em></p>
  
  <p>Can this be improved upon? Is it in 3NF?</p>