Web gallery software for photo, video, etc

Gallery Server Pro is a free, powerful, and easy-to-use open source .NET web application that lets you share and manage photos, video, audio, and other files over the web.

• Use any web browser to organize your media files into albums you can easily add, edit, delete, rotate, rearrange, copy and move.
• Easily add thousands of files using one-click synchronize and ZIP file upload functions. Thumbnail and compressed versions are automatically created.
• Powerful user security with flexible, per-album granularity.
• Integrates with DotNetNuke and other frameworks to provide a superior media gallery.
• Image metadata extraction. Supports these formats: EXIF, XMP, tEXt, IFD, and IPTC.
• Search function queries title, caption, filename, and image metadata.
• Image watermarking with your own text and/or image.
• AJAX-enabled for more responsive UI.
• Web-based installer makes installation a snap! Automatically detects and upgrades previous versions of Gallery Server Pro.
• SQL Server database engine provides robust and ultra fast performance. Compatible with all recent versions of SQL Server.
• 100% managed code written in C# and ASP.NET 2.0. Source code is freely available.
• Free, open source software released under the GNU General Public License.
• All web pages target XHTML 1.0 Strict and CSS 2.1 standards to ensure maximum forward compatibility.

Gallery Server Pro is professional grade software designed to be extremely fast even under heavy server load. It is open source software released under the GNU General Public License, but unlike other open source software it is easy to install and has excellent documentation. A comprehensive Administrator's Guide provides step by step installation instructions for several deployment scenarios, and a comprehensive Administrator's Guide provides step-by-step installation instructions and detailed information about configuring, operating, and customizing Gallery Server Pro.