“Users get lost inside PDF files, which are typically big, linear text blobs that are optimized for print and unpleasant to read and navigate online. PDF is good for printing, but that’s it. Don’t use it for online presentation.” Jakob Nielsen —PDF: Unfit for Human Consumption (UseIT)

I’m so conditioned to dislike PDF documents that I actually hesitated before clicking the link — the “PDF” in the title threw me.