In the same space there are:

  * Print Friendly (http://www.printfriendly.com/)
    Tayor Norrish was interviewed about his startup experiences with PrintFriendly on
    techzing (http://techzinglive.com/?p=211)
  * Print What You Like (http://www.printwhatyoulike.com/)
  * The new Reader functionality in Safari 5 (no editing here).

BTW, under OSX, from the printer panel you can save your printing as a PDF.