It [was] LEGAL to download The Great Gatsby... (revised January 1, 2021!)

...in most of the world!

...in the US, too, after January 1, 2021. This post, originally written in May 2013, needed some updating.

If you are were in the US, then tough luck, the rights belong belonged to the CBS Corporation, and you'll have would have had to pay Amazon $7.80 $4.99 to get it legally on your Kindle.

If you are sober enough to know which country's laws you're you were subject to (not that sobriety is a guarantee of jurisdiction-awareness) then you probably still don't know whether it's was legal to download The Great Gatsby from Project Gutenberg Australia. It's too bad that SOPA didn't pass because then all the US-illegal links to The Great Gatsby would be censored by law, and you would automatically have infringing links removed or not as the case may require.

So this is a little auto-link-legalizer page for you. Just click on the appropriate link:

• I'm subject to US copyright law.
• I'm subject to the copyright law of Australia, Canada, or some other pirate jurisdiction.
• I have no clue what copyright law I'm subject to.
• I'm a time traveler from the year 2021 or later.

A wise decision.

You've just been spared jail time and statutory damages up to $150,000 per download of the infringing files from Project Gutenberg Australia or the Univesity of Adelaide. Because The Great Gatsby is not part of the public domain in the US. Consider yourself lucky. And what ever you do, don't click on this link, which probably would be a violation of the anti-circumvention provisions of the Digital Millenium Copyright Act. SO DON"T DO IT!

G'day, eh! Remember, if you're in the US, an maybe in other jurisdictions that I'm sure people will comment on but I'm too lazy to look up, you should NOT be reading this so please stop NOW.

The Great Gatsby is available in a number of formats for your reading pleasure.

The Project Gutenberg Australia has it here. High quality EPUB and Kindle formats are available from Standard Ebooks.

Yeah, me neither. but it's best to be safe and consult your lawyer before clicking this link. Kevin Smith's explanation of US Copyright Law might also help.

But you know, CBS won't notice one or two clicks. Even a hundred or so clicks and it's just some drunk displaced ex-pats. But if tens of millions of copyright-confused readers started clicking, the politicians and the plutocrats might notice a little something. The might even think it was a movement. The Aussie Gatsby Click on a Dodgy Link Movement. And all you got to do is click. If you want to end war and stuff, you gotta press that mouse button with feeling.

Right then. If anyone tries to tell you that The Great Gatsby has "fallen out of copyright protection", call them on that bullshit. Because that's disrespectful of a great work that has ascended into the Public Domain. Finally, on January 1, 2021, The Great Gatsby has escaped its copyright imprisonment.
Project Gutenberg Australia has it here. High quality EPUB and Kindle formats are available from Standard Ebooks.

Update (5/9/2013): Good discussion on Hacker News surfaced the answer via ernesth to my lazyweb query. The Great Gatsby is in the public domain in all countries but 7: the USA, Mexico, Guatemala, Honduras, Samoa, Saint Vincent and Grenadines, and Ivory Coast. All countries except the USA apply a law that states that books enter the public domain a given number of years after the death of the author. In Europe, it is 70 years, in Canada 50, in Mexico 100. See List of countries copyright length. It's not known if copyright exists in other parts of the galaxy. 

Update (1/1/2021): Happy Public Domain Day!