This is great. Sometimes all you need is just a quick Facebook like button.

It's a great way to discover icons. Of course, you would usually want to use only icons from a single icon set, so your icons become consistent through your application.

However, sometimes you get into trouble when the set doesn't have a particular icon. This site could be a life saver if you don't have any budget to contact the original designer and ask for custom work.

Good job iconfinder