Great basics on the benefits of Replacement Windows information from Wikipedia.
Moisture in windows? Get the skinny from Energy Star government website. Also check out their Do-It-Yourself guide book on how to Air seal and insulate your home and provide added protection to your exterior walls, doors, window openings, flooring and even your ceilings in many cases. Click here for the link to the guide.
Intersted in knowing the 30,000 foot view of how windows should be contructed by any manufacturer when working to acquire an ENERGY STAR-qualified window seal of approval?
With so much emphasis on converting to sustainable resources for energy, etc., consider Zen Windows as a solution to expensive heating bills in this energy crunch.
From time to time there may be Rebates & Tax Credits that are available to consumers in various areas of the country. Currently (Feb-2008) there is nothing special to note for the Columbus, Ohio area. Click here to check for the latest Rebate & Tax Credit info on Windows, Doors and Skylights.