This pond is in filtered sun and under lots of pine trees. The empty spot screamed for a pond, so I built an above ground one with cinderblocks and a liner. Because of the shade, I was able to plant taro in the water. Gotta be careful of taro tho. It's invasive.
I got this pond on Bainbridge Island in Washington State up and running again to the delight of this guy who greeted me in the morning and defiantly claimed it as his.
I wrote a book about ponds. You can buy it here.
And don't forget http://www.pondlady.com if you want to show off your pond or get your pond questions answered.