Every April 1, to the chagrin of gullible folks everywhere, the Internet floods with delightful misinformation. Google’s hijinks probably get the most attention, but that doesn’t mean there aren’t mischievous programmers and copywriters all over the web putting their personal touch on the day’s tradition of trickery.

This year, the Sierra Club unveiled an iPhone app that automatically spins the consequences of coal-power and mountaintop removal into eco-friendly rhetoric. It’s not a “catastrophic coal-ash spill,” it’s a “sudden accidental release of natural byproduct.”

Gu Energy Gel introduced new flavors including Liver and Onions, (Supreme Chalkiness. Maximum Chewiness) Mushroom Rush (Supreme Fungus. Maximum Mealiness) and Venison Vengeance (Minimum Mange), among others.

Gadling reported a pregnant woman preparing to climb Everest in order to smash the “youngest on the summit” record.

And while the rest of the environmental reporters were looking the other way, The Economist broke the lesser-known story of peak olive-oil, which threatens to leave salads undressed and, as one commenter pointed out, could lead to a sudden decline of virginity.

Then there’s the possibly even more delightful tradition of April Fool’s tricks gone awry:

The Calgary police didn’t get the joke when the Edmonton Outdoor Club announced their April Fool’s intent to paint hockey mascots on the iconic Calgary Tower.

And newspaper columnist Jerry Davich entered uncomfortable territory when he made a fake announcement that he’d been fired for a previous column. “I’ve been waiting for the Post-Tribune to fire you for years,” a reader wrote back. Yikes. But that’s small potatoes next to the reader who wrote in from the hospital. He had a heart attack after hearing the news. Or so he says.