April Fool's Day On The Web

This story was written by CNET's Caroline McCarthy.

April Fools' Day has hit the Internet and, as usual, there's no shortage of fake news stories, gag product announcements, and corny jokes. Some are funny. Some are sort of lame attempts at being funny. Here are some of the ones we think are worth highlighting, and we'll be updating this throughout the day as we catch wind of more.

None of these links are Rickrolls. I promise. That is so 2008.

• A couple of blogs (including reputable tech stalwart Engadget) were legitimately punked by an early hoax: the "Hotelicopter," which claimed to be the world's first flying hotel -- converted from an old Soviet military helicopter.
• Security blog TechJaws announced that Microsoft had finally acquired Yahoo. Um -- yawn.
• One of the best April Fools' jokes this year comes from The Washington Post, with fake exploits of the much-hyped Conficker worm rolled up into what appeared at first to be a straight news story.
• Google, known for its April Fools pranks, pulled an odd one this year with the introduction of a fake artificial intelligence research project called CADIE. Naturally, CADIE is a disaster: the project determines that the best Web design resembles something out of 1997's backwaters. (There's also a mobile "Google Brain Search," a Gmail "autopilot," and a 3D version of its Chrome browser.)
• The Google-owned YouTube played its videos upside down.
• Broadband media blog VideoNuze announced that YouTube and Hulu had merged but were still searching for a new name.
• Amazon Web Services unveiled a new plan for cloud-computing systems hosted on blimps.
• Ice cream company Ben & Jerry's created a fake Web site, Cyclone Dairy, which claims to only sell milk coming from cloned cows. But in a press release, Ben & Jerry's explained that it does hope the prank will raise awareness of the ethical and health issues surrounding cloned livestock.
• Social news site Reddit rebranded itself as "Reddigg," aping the color scheme and layout of its rival Digg.
• The U.K. newspaper The Guardian announced that it was shutting down both its print edition and Web site, turning instead to a Twitter-only format. "Experts say any story can be told in 140 characters," the announcement read.
• Box.net, meanwhile, argued that 140 characters is too long and launched a gag product called Chirper, which promised to shorten tweets to 50 characters for easier consumption. It actually works, but, um, we doubt you want to use it.
• Image-editing company Aviary announced "Crane," the world's first "paper based image editor," which uses a physical "Pencil Tool."
• The makers of the Opera browser announced that they were introducing face-gesture browsing.
• Social-network app company SGN, which owns the cutesy virtual pet app FluffFriends, dressed up its cartoon animals to look like killer mobsters. They still don't look very scary.
• College search site Unigo added a fake college, Cornmouth University, to its directory. Company employees have been Twittering that they spent spring break there.
• An e-book company called Smashwords put out a fake press release announcing that the entire "Harry Potter" series had been self-published on its service by author J.K. Rowling. Self-aggrandizement, anyone?
• Ladies! TechCrunch's Michael Arrington is hunting for a wife and has enlisted a matchmaker! "I understand I don't have much to work with here," she wrote on TechCrunch. "A sedentary 39 year old single man who made questionable career choices and now blogs for a living just doesn't look good on paper...As far as I can tell his diet consists almost entirely of burritos from Chipotle."
• And in what could turn out to be the biggest joke of all, that Conficker worm has turned out to have more bark than bite so far.