It's time once again for the only universal holiday of the Internet, April Fool's Day.  Here are some of the pranks for today, for your enjoyment:

• Why should grownups have all the fun of project tracking? Atlassian introduces JIRA Jr. to track all the important stuff about being a kid.


• Google once again breaks new ground, with Google Nose. Why scratch-and-sniff, when you can click-and-sniff? (Don't get too used to it though...after the whole Google Reader thing, you never know what they'll shut down next...)


• And another improvement from Google, this one to its Gmail service (which, lest we forget, was launched on an April Fool's Day): Gmail Blue. Like the Gmail you know and love, only bluer!


• YouTube reveals its big secret: it's actually been an 8-year-long contest all along to find the best video on the Internet. Now they're shutting down to start judging all those videos. Expect to find out who the winner is...in about 10 years...


• Not to be outdone, Google Maps now offers a treasure mode.


• The hits just keep on coming from the Googleplex: Google+ allows you to attach real emotions to your pictures. (Insert joke about Google+ being the real April Fool's joke here...)


• Twitter is becoming a two-tiered service. The free version, "Twttr," will only let you use consonants. If you want vowels, upgrade for only $5 a month. Hey, Vanna, pick me a letter!


• Virgin Atlantic announces a new innovation: the world's first glass-bottomed plane.


• Check out some of ThinkGeek's latest products, such as the Batman Family Car Decals, Adventure Time BMO Interactive Buddy, Aliens Chestburster-in-a-Can, Eye of Sauron Desk Lamp, Play-Doh 3D Printer, and MinecraftCreeper Body Pillow.


• President Obama announces a plan to try to pay down the national debt through crowdfunding. I guess it's no stupider an idea than anything else that's come out of the White House recently...


• What Obama has actually done (and this is not actually a joke, but it might as well be) is to proclaim April "National Financial Capability Month," in which he wants to "teach young people how to budget responsibly." I'm withMichelle Malkin on this: would you take financial advice from an Administration that has racked up more debt than all previous Administrations in American history, and whose own budget is two months late?


• Nokia announces a microwave oven...which, given the way they've been sucking out in the mobile phone market recently, might actually be a viable business plan for them.


• Slashdot announces that, to encourage users to log in, they will be encrypting all stories with ROT13. Click one button to decrypt the story...but anonymous users will just need to watch an interstitial ad first.


• Also on Slashdot, a true battle of the Computing Titans. Who will win...the Radio Shack TRS-80 or the Commodore 64?


• No more secret sauce! Introducing the Open Sauce Foundation, sponsored by McIlhenny (the Tabasco sauce people), Huy Fong Foods (who make Sriracha Rooster Sauce), and Kikkoman.


• Linus Torvalds is jumping ship from the Linux Foundation to head up Microsoft's Windows 9 project. After the debacle of Windows 8, this could only make things better.


• Fermilab chooses a new director...who thinks bow ties (and fezzes) are cool.


• Meanwhile, over at CERN, they're running a lottery. Ten lucky winners will each get their very own Higgs Boson! (How much will those go for on eBay?)


• Coming soon to Broadway: Shadow War of the Night Dragons - The Musical! Based on the work of John Scalzi, who addresses the rumors here.


• Meanwhile, Charles Stross is becoming a producer; read about his first project.


• Apple finally introduces their much-rumored iWatch...but it's not what you might think. (But it'll still be a better product than their Maps app on iOS!)


• Your new RFCs for today: RFC 6919, "Further Key Words for Use in RFCs to Indicate Requirement Levels," and RFC 6921, "Design Considerations for Faster-Than-Light (FTL) Communication." The former is slightly silly, but the latter actually has some decent science-fictional content to it.


• Introducing "Take Your Computer To Work Day." Can I bring my Raspberry Pi?


• And speaking of which...Erbosoft Enterprises announces its intentions to take on Microsoft, Google, Oracle, and in fact most of the computer industry. watch this space...