Web site Issuu turns any PDF into a web-friendly, embeddable Flash eBook. Just upload the PDF to Issuu and it takes care of all the heavy lifting. When it’s done, the result is a flippable page-turner like what you see above. Some PDFs will work better than others for this sort of embedding, and for those pages with text that’s too small to read, clicking on the page will zoom in. It’s not the first online PDF viewer, but it may be the best looking—perfect for online zines or just sharing documents without sending big attachments.