title: Anything better than ruby alchemy for extracting keywords?
body: <p>I've currently written an algorithm in Ruby based on the arc90 readability code to extract an article from a web page.</p>
  
  <p>Now that I have the article, I want to extract keywords and specific information from it (names, author, etc)</p>
  
  <p>I heard Alchemy was a great ruby gem for doing this though it consumes a lot of resources. Are there any better gems I can use for this?</p>