Well, Rupert Murdoch has been dropping pretty big hints that the Wall Street Journal pay wall is a-comin’ down pretty soon — and it shouldn’t be too hard to make it crumble, since Digg just put a pretty big hole in it. As Kevin Rose describes in his rather economical post on the subject (I counted 38 words, not including his name), articles at the Journal will start carrying the Digg button, and any stories that get Dugg will be free for readers who come from the social-bookmarking site. Mike Arrington has a slightly longer post over at Techcrunch.