MLA updates references, web default, but no URL

WillAdams writes: "Inside Higher Ed as reported the new seventh edition of the _MLA Handbook for Writers of Research Papers_ makes web references the default, but doesn't require a URL, operating under the assumption that readers will be able to find the referenced work using a search engine http://www.insidehighered.com/news/2009/03/11/mla — an assumption which doesn't take into consideration Google bombs &c. Ars discusses it here: http://arstechnica.com/media/news/2009/04/sign-of-the-times-print-no-longer-default-mla-citation-style.ars"