title: Detect the actual content in a web page (ignore header, footer, navigation etc.)
body: <p>Looking for a way (client-side or server-side) to detect the actual content part of a web page and remove its header, footer &amp; navigation. Something similar to the way the Amazon's "Send to Kindle" add-on for Firefox works. The solution can be either client-side (JavaScript) or server-side.
  I understand that it can't be a 100% reliable solution but I was wondering if there's a library/algorithm somebody already used for this type of problem.</p>