MailBounce adds a bounce feature to Mozilla/Netscape (and possibly other mail clients) that does the same as the bounce feature of console mail clients such as mutt. When a mail is bounced, its content isn't touched or marked with ">", and the From: address isn't changed either, so a reply to a bounced mail will go to the original mail sender, not to the bouncing person.
LiPPGen, the Literate-Programming-based Presentation Generator, takes a standard Literate Program (with LaTeX as the documentation language) as input and lets the instructor comfortably generate presentation slides for each code chunk. It then assembles the provided slide texts and the code chunks and turns them into a browser-based presentation. The presentations feature scrollable code chunk listings, primitive syntax highlighting, and line breaking within listings. LiPPGen expects the source file to be formatted in noweb's Literate Programming style.