I wish they’d tell people up front that Amazon gets your email, the title and associated metatdata of the book you are borrowing, and the due date, and that Amazon will email you to tell you that the book is due in X days (usually 2) and offer to sell you a copy. I also wish that they required you to opt-in, or at least offer an opt-out.
There’s bookmarklet on the page linked below (drag the bookmarklet to your Web browser toolbar then log in to Facebook) that checks to see what kind of information FaceBook can/is sharing about you, and helps you tweak your FaceBook privacy settings, if you want.
This site has a bookmarklet that lets you check your Privacy settings, an otherwise arcane is complex process with a UI that often requires you to click five items before arriving at a setting to change.
My friend Dawno alerted me to this story about anti-plagiarism service Turnitin.com being sued for copyright violation by four students. Turnitin is a service contracted by universities and schools. Faculty submit student papers for analysis by Turnitin which compares the text to papers stored in an internal database and to text stored on the Web; Turnitin uses an algorithm based-text-string analysis of the sort an experienced teacher engages in when we use our own skills and Google to spot plagiarism. Turnitin looks for strings that match within a few characters, and then provides a “report” that color codes text and and offers statistics and URLs.