Facebook images are stored in galleries that organize each image. The actual URL of each individual image contains a number that uniquely identifies the profile of the user who posted the image ...

Forget downloading and re-uploading images from the Web to Facebook. Your meme-posting and photo-sharing just got a whole lot easier.

Curious how Google Analytics will show your traffic coming from Google Image search after the pre-announced referrer URL change? Google has documented it for us in a blog post.