API stands for "Application Programming Interface," but what it means is "open for innovation." Developers write software that enables you to bring elements of YouTube to your website, software application or device, creating whole new portals of possibility.
Our 
API blog keeps developers in-the-know on the latest happenings in the YouTube API world, and 
this page on YouTube gives a comprehensive overview of where to start, how to build custom players for your site, widgets to play with, instructional videos, developer forums, and more. On May 27-28, many avid developers will convene in San Francisco for the 
Google I/O developer conference to learn from each other and share best practices.
While all those tech-heads are getting together, we wanted to start a new series in this blog that shows you the best of the fruits of their labor. For example, take the 
upload. Sure, you can go to YouTube and click the yellow "upload" button on the homepage. But there are actually many ways for a video to go from point A (your recording device) to B (YouTube), all made possible by creative use of APIs:
    * 
Android 1.5 sports a one-click upload process which happens in the background so you can do other things while the video is being uploaded. Learn more about it in 
this Google Mobile blog post. 
    * 
iMovie has one-step publishing to YouTube. Apple has details 
here.
    * 
Qik automatically updates your live stream to YouTube once the stream is completed. Go to the Qik site 
here for more info. 
    * 
Eye.Fi offers an SD (Secure Digital) card that you can insert into your digitial camera enabling you to upload videos wirelessly from the camera to YouTube. Read a product review from the 
Washington Post here.
    * 
Flip is an 
ultra-portable digital camcorder with software that makes it easy to upload recorded videos to YouTube. The camera plugs directly into your computer's USB port.
Then there are some pretty cool 
slideshow apps, which make it easy to turn photos into videos:
    * 
Animoto heralds itself "the end of the slideshow."
    * 
One True Media "perfectly mixes" your life for family and friends.
    * 
Aquasoft sells slideshow creation software.
And 
games. You probably already know about 
SPORE's Creature Creator app, which blew up on YouTube last summer. Turns out, there are other games making good use of YouTube's API:
    * 
PixelJunk Eden fans can capture video of game recordings and upload directly to YouTube. More info in our API blog 
here.
    * 
GoldenTee gives you the option to upload to your YouTube account if you make a great shot. There's a wireless connection inside each game, meaning that if you're in an arcade or bar without an Internet connection you can still upload videos worthy of bragging rights.
What YouTube apps have you seen that made you drool with excitement? Tell us about them in the comments below and we may include them in a future blog post here or in the API blog.
Yours,
Kuan Yong
Product Manager
The YouTube Team