If you own a photo camera, most likely you have an account on Flickr. If your mobile phone has a photo camera attached then probably you use Shozu to upload pictures directly to your account. If you have your own blog, you’ve probably already shared your albums there.

So what made Flickr so successful? Let’s see… first of all, it’s simple! Simple to register, to create albums, to share, to find pictures, and so on.

Second of all, it’s fast. In my opinion, there are similar photo sharing services out there with better features or more space, but I still prefer Flickr. Why? because it’s fast. Because I don’t have to wait for images to load, because everything runs smoothly.

And last but not least… Flickr is light. It doesn’t have a ton of unuseful features. It only has what I need. Find, upload, share. And that’s that!

To sum it up: a successful product doesn’t have to be complex, heavy or feature-full. Actually, it’s better the other way around: simple, fast and light.