Josh Camson takes a look at the issue and concludes that the correct format for the url one should use when citing cases found in the Google Scholar database is:
Unfortunately, that is not the URL that will appear in the address bar when you first found the case. He cites, as an example, a search for commerce clause cases that kicked up US v. Lopez. The address bar will read:
Instead of just copying and pasting the address bar url, you thus have to identify the case number (the number after the first equals sign and before the ampersand) and manually insert it into a manually typed citation using the correct url format. I guess you could short cut part of the process using autotext, but it still looks to be a pain in the ass. Why not just stick to Lexis or Westlaw (setting aside cost)?
My biggest complaint about citing internet sources, however, remains the unwieldy length of most urls. It inevitably messes up the appearance of the page when using fully justified fonts.