HTTrack is an easy-to-use offline browser utility. It allows you to download a Web site from the Internet to a local directory, building recursively all directories, getting HTML, images, and other files from the server to your computer. HTTrack arranges the original site's relative link-structure. Simply open a page of the mirrored Web site in your browser, and you can browse the site from link to link, as if you were viewing it online. HTTrack can also update an existing mirrored site, and resume interrupted downloads. WebHTTrack is a Web-based GUI for HTTrack.
UrBackup is an efficient client/server backup system for Linux and Windows. A client for Windows lets you backup open files and complete partition images. Incremental and full image backups are stored to disk in a efficient way with file level de-duplication on either Windows or Linux servers. An easy-to-use server Web interface lets you analyze storage usage, view logs, modify settings, and browse backups. Backup images can be restored using a prebuilt live Linux CD based on KNOPPIX.
Serv-U is a powerful and easy-to-use file server which supports the FTP, HTTP, and SFTP (via SSH2) protocols to ensure maximum compatibility with the widest range of transfer client software. It supports SSL encryption, provides a Web-based interface to allow administrators to remotely access and configure the file server, includes a built-in transfer client to allow users to upload and download files from their Web browsers, provides photo sharing capabilities, integrates with Active Directory (providing levels of security based on Organizational Units), and can be accessed and administered in 13 different languages simply by choosing an appropriate language upon login.