I see Mark Pilgrim has started including a revision history for each post on his weblog. This is an interesting feature, especially if you've got a group weblog or a blog tracking the status of several issues–you can bookmark the permalink of the entry, and watch that specifically, rather than going through the whole reverse-calendar order of the site to find updates. Very cool.

DVD's Meant for Buying but Not for Keeping. The Walt Disney Company's home video division plans to test market a DVD that never needs to be returned because it stops working after a fixed period of time. By Eric A. Taub. [New York Times: NYT HomePage]

Two groups that will hate this–video rental stores and environmentalists. Another form of throwaway culture is all we need–the DVDs should come with a return deposit for recycling, at least.