As I'm doing more and more photo shoots, I'm looking for a site in which I can post proofs for clients to look at. I would use Flickr, however the images can be downloaded and I obviously don't want proofs to be downloaded before they have been edited. Can anyone recommend a site that I can use?
SmugMug.com for sure. Tons of security features both to protect the photographer's work (right click protection, watermarking, image size limitations) and to protect privacy (password protected galleries, password protected sites, unlisted galleries). Not to mention all the commerce features and other Pro oriented stuffs.
NOTE: I am a SmugMug employee :D
Many options exist for this, and over time these company's seem to come and go but I'll note some of the recent ones that I am familiar with: