Fish-eye effect

I searched online to find out how to create this effect as I want to use this for one of my images. It is fairly easy and simple to do. Below are a couple rough experiments I did to simply find out whether it will work. Obviously when working up my photography  I will take more time and care to create the best image possible. 


Web address: http://www.dummies.com/how-to/content/give-your-digital-photo-a-fisheye-effect.pageCd-storyboard,pageNum-8.html