Free software for site backup and offline browsing

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HTTrack is a free and easy-to-use offline browser utility, copying Web sites from the Internet for offline browsing.

It allows you to download the entire World Wide 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" website 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. HTTrack is fully configurable, and has an integrated help system. The interface is very simple and is characterized by a high degree of functionality. The software can be very usefule as by beginners as by experienced computer users.

WinHTTrack is the Windows 9x/NT/2000/XP release of HTTrack, and WebHTTrack the Linux/Unix/BSD release.

Developers Web site: http://www.httrack.com/

Direct downloading link for portable software (no installation required): http://www.ziddu.com/download/2226090/httrack-noinst-3.42-3.zip.html

The software is highly recommended. I am using it personally for offline browsing and full web sites backups. It has the highest rating 5 of 5 on the list of the freeware download managers:

http://www.rateitall.com/t-27138-download-managers--freeware-reviews.aspx