Extreme How To: Do it Yourself Window Replacement
Step by step illustrated tutorial; from measurement to removal through final trim.
http://www.extremehowto.com/xh/article.asp?article_id=60193
Hometime: Windows and Doors
Tutorial covering styles and options, general installation instructions, and specialty installation instructions for Tilt-Pac windows, roof windows, and garage doors. Photographs, cautionary notes, and a windows and doors glossary.
http://www.hometime.com/Howto/projects/window/win_4.htm
Lowe's Home Improvement Warehouse
Illustrated tutorials on repair and replacement including garage doors and screens.
http://www.lowes.com/lowes/lkn?action=howTo&p=HTindex/doors_windows_index.html&rn=RightNavFiles/rightNavDoorsWindows
The Old House Web
How to fix balky doors, out-of-plumb doors, pocket doors and weatherstripping.
http://www.oldhouseweb.com/stories/How-To/Doors/
Vinyl Replacement Windows Buyer's Guide
Advice and tips includes features, options, purchasing and installation experience.
http://www.vinylreplacementwindows.org/