A list of things which do not actually constitue a valid April Fools’ Day joke taken from Anil Dash:

“I changed my stylesheet! To someone else’s!” Why isn’t that funny? Because I still knew it was your site.

“Our tiny company bought/got bought by a giant company. Like Microsoft!” Wow, that’s lame. Neither believable nor surprising enough to be amusing.

“We are embracing this thing we’ve demonized forever!” So you’re a pest removal service that’s getting into the cockroach-raising business? Sigh.

“We have a big announcement today!” No you don’t. It’s Saturday.

“Our new product does the impossible.” You mean like making an April Fool’s joke on the web that’s actually funny.

I was actually planning on changing my stylesheet to something funnier before I read this list. Nibaq already pulled the second one today.