A very informative publication produced by Natural Resources Canada (63 page, view online or download it as a PDF). While you are on this site, take time to look around. This organization has done an incredible job of researching and publishing papers on a wide variety of bioenergy topics.
Another useful publication from Natural Resources Canada. (15 pages, PDF)
The definitive study by Natural Resources Canada. See Chapter 3 "Comparing Annual Heating Costs" on page 34 provides the useful guide for comparing the cost of heating with wood against other fuels.
A great resource if you are planning and sizing a new heating system. A tutorial and calculator will help you compute your home's heat loss or gain.
A dealer site sponsored that contains useful information, tools and tips covering a wide range of home HVAC topics.
A community website with lots of articles and useful information on everything from how to buy wood to how to start a fire.
A site that bills itself as the "Homeowner's Guide to Firewood." Lot's of interesting information including up-to-the-minute prices on firewood for each region.
A white paper by Master Plumber David Yates. A good overview of the issues to consider when planning a hydronic radiant heating system.
Everything you wanted to know about designing, installing and maintaining a chimney.
Tom, Rich and Norm have gone "way commercial," but this site still contains lots of useful articles and other information.