On the subject of the bubble and April Fools, I have a great example of the Internet enabling great April Fools pranks.

At a .bomb startup in the late 90s, our own company ran a stock ticker website. On April fools, someone got together with IT and MITM'd the stock site, showing our share price plummeting.

This could have been particularly evil, but the joke was disclosed early on.

That's a prank, rather than this marketing drivel where companies announce clearly ridiculous features and products.