An anonymous reader writes with this excerpt from Significant Bits about how the early level design in Super Mario Bros. 3 gradually introduced players to the game without needing something as blatant and obtrusive as a tutorial: "Super Mario Bros. 3 contains many obvious design lessons that are also present in other games, e.g., the gradual layering of complexity that allows players to master a specific mechanic. What surprised me during my playthrough, though, was how some of these lessons were completely optional. The game doesn't have any forced hand-holding, and it isn't afraid of the player simply exploring it at his own pace (even if it means circumventing chunks of the experience)."

jyosim writes "A site called Textbook Torrents is among the many sites popping up offering free downloads of expensive textbooks using BitTorrent or other peer-to-peer networks. With the average cost of textbooks going up every year, and with some books costing more than $100, some experts say that piracy will only increase." Having just completed graduate school, I can attest that quite a few books are in that more-than-$100 range, and that they're heavy besides. But the big-name textbook publishers are much less interested than I am in open textbooks, even if MIT has demonstrated that open courseware is feasible, and Stanford and other schools have put quite a bit of material on iTunes.