After watching this video, I feel like getting a fisheye. *Gear lust*

While in this talk he shares his photos and experience with fisheye lens, his technique can be applied to wide angle too, or any other lens attached, or any form of photography.

gengho-1

geneho-3

Watch the video or visit his website for more of his photos.

You can visit his website for more of his portfolio and resources in photography:
http://www.geneho.com/
http://www.undergroundgeneho.com/
https://www.facebook.com/genehophoto