Apple shuttered MobileMe Galleries in June, which many Mac users were happily using as photo albums for sharing on the web.
Apple has made a small step back toward photo sharing with Photo Stream sharing, which is now a part of iOS 6 and iPhoto and Aperture on the Mac.
The implementation is flawed in many ways, but here's how it works.
On the iPhone or iPad go to Photo Stream in your Photo app and press the + button. That will allow you to name your collection of photos. Type in an email address (it must be someone on iCloud) and decide if you want the stream posted publicly or not. If you make it public you will get a URL so anyone can see it.