Flickr has announced that it now has more than 200 million Creative Commons (CC) licensed photos. In the process, the photo-sharing service has become the world’s largest archive of CC licensed photos.

CC licenses allow you to clearly define how other people may use your creative work without you having to give your explicit permission each time someone wants to use it. For instance, you might allow others to modify and share your work, as long as they properly attribute it to you.

You can search and browse the CC photos on Flickr by license or find a CC licensed photo that fits exactly what you are looking for by ticking the CC checkbox in Flickr’s advanced search. If you’d like to allow others to use your photos under a CC license, you can change your default upload license from your settings or change an individual photo’s license in the “Owner settings” menu on one of your photo pages.

It’s yet another milestone for Flickr, which hit 6 billion total photos in August. The Yahoo-owned service is certainly showing no signs of slowing down, having launched its first Android app and a cool Photo Session feature last week.