A great post from Ars Technica on why desktop word processing apps are hopelessly obsolete for much of the tasks they're still used for. Sure, if you're creating a long document that will be delivered to its audience in print form, Word (or your desktop word processor of choice) is a great tool. But how many documents created in the business world today really fit this description? When everyone in the audience for your document is online, why not author your content online?