Ninjas everywhere are celebrating the International Day of the Ninja, an annual Dec 5th event popularized by the Ninja of Ask a Ninja.

If you haven’t noticed ninjas celebrating the day yet, well, it’s because they are ninjas. And if you have been lucky to see ninjas celebrating, they’re probably nonjas.

If you’re a non-ninja and you’d like to celebrate the Day of the Ninja like the French do (Le Chaos s’empare de nous), you’re encouraged to plague your co-workers with ninja-ness, post photographs and videos of ninjas/nonjas in action, and most of all, to tag your content “NinjaDay2007”.

And if you want to learn more about ninja ways, check out our interview with the creators of Ask a Ninja and find out secret ninja tips on creating viral video, too.

Update: The Ask A Ninja guys will also be hosting a Ninja Day party.

Kent Nichols and Douglas Sarine will host the official “International Day of the Ninja” party at the El Rey Theater in Los Angeles.

In addition to the Ask A Ninja.com “Ninja” answering questions from the crowd, there will be special guest performances by geek-cult comedian Patton Oswalt and musical funnymen Hard ‘n Phirm.

“Many have compared International Day of the Ninja to International Talk Like a Pirate Day,” they note. “There is no comparison. Pirates are silly, drunken fops compared to the incredible and masterful Ninjas.”

Here are the details:

Ask A Ninja Live
Wednesday December 5th, 2007
@ The El Rey Theater
5515 Wishire Blvd.
Tickets are $10 Advance and $15 at the door
Advanced Ticketing Available via http://TicketMaster.com