This weekend i heard about a great new site for photographers called PASS. It is a very simple yet fast way to get photographs from the photographer to the client. One of the cool things is it has iPhone and iPad apps all of which are free and there is no limit on file size which is great if you are using a modern DSLR.
The other really great thing about this website is that you can customize the whole experience for the client with your own logos and branding. The best part of all is that most of the features are free of charge.
Check it out here