The American uniform citation handbook, the Harvard Bluebook, is now online. You will need an account to access it, either a paid account of your own or an account of your subscribing institution.
We've talked at Slaw about the need for a free online Canadian uniform citation guide — indeed, even offered the services of our members to the McGill Guide folks, who declined our help. How hard would it be for us to produce a basic online guide that could then be improved over time?
[via Jim Milles on law.librarians]