Since becoming interested in photography, I’ve wanted a way to share galleries with clients. After doing some research, I decided to try Pixieset and have been extremely pleased so far. I have been using it mainly for clients to view their galleries, and do not use it for selling prints yet. It provides a very easy-to-use interface for the photographer to upload full resolution images and manage their albums. I also really like the modern and clean design, and it allows you to use custom domains if you so choose. In my case, I have it set up to re-direct back to my website when a client clicks on my name.
If you’re interested in the different websites that offer a similar service, check out this page from Petapixel.com that lists all of the most popular client galleries for proofing and presentation. It is a great list of resources for the professional as well as hobbyist photographer.