I am associated with a couple of stock image agencies and some of my selected images are available for online purchase. Please visit the Getty Images collection of my images. Once you purchase, you will be able to instantly download the images from there.
And of course, for images that you don’t find there and interested, drop me a mail, you can still get them from me. My Flickr collection or my facebook collection is a good place to start browsing my images. Once you write a mail to me about the selected image, I will send you a detailed quote and other details.
I am currently working with a couple of other image agencies, will soon make my images available through other sources.