Juicebox - Spectacular HTML5 Image Galleries Made Easy
Picaboo - Picaboo is a web-based image publishing and printing service that allows you to create personalized photo books, cards, and scrapbooks.
Walmart Photo - Walmart Photo is a fun way to turn your pictures into art and embed it into everyday goods.
novaGallery.org - Beautiful php image gallery - easy to use, with modern responsive design, private mode, themes, languages
Piwigo.org - Manage your photo collection with Piwigo. Piwigo is open source photo gallery software for the web. Designed for organisations, teams and individuals.
Gallery Revival - Gallery Revival, now named Gallery 3, is a web-based software that lets you manage your photos on your own website.