Dare Obasanjo posted recently about populicio.us, the "popular links" service which was screenscraping data from del.icio.us. Populicio.us has gone down (at least temporarily, it will probably relaunch soon) because del.icio.us changed the way it displays information. Dare thinks that screenscraping is pretty crude and "needs to die a horrible death". I tend to agree: APIs and feeds are a much better way to access a web service.