My photography being used commercially?

I figured out how I ended up being on the about sailing page I referenced yesterday. This article called Hot Features in Cool Races to Warm Places uses a picture of mine from Flickr. Cool! Thats the first time to my knowledge a photo of mine has been used...and I appreciate the proper reference back to me from the site. I think I'd like to license my photos as "just send me an email to show me how you are using it."

Here is the photo being used:


This just happens to be the background of this blog too...