• A List Apart
  Articles: Design Choices Can Cripple a Website
  The wrong design choice can cripple your website. Here's how to avoid it.
  choices conversion design marketing rates sales usability web
  By mfog in Public bookmarks with convertion design test ua
• Bibliophile
  GPL PHP Libraries for convertion, import and export of bibliographic exchange formats, etc.
  bpcentral
  By solimo in Public bookmarks with gpl php libraries convertion export bibliographic exchange formats by 3 users

Results 1 - 2 for convertion