http://www.brive-tourisme.com/hebergement
http://www.ot-terrasson.com
http://fr.europa-bed-breakfast.com/html/gite-chambre-hotes-departement_dordogne_24_1.html
This is a very useful website for lodging. It is all in French, but I believe it is fairly self explanatory for a non-French speaker as well.
http://www.france-voyage.com/en/
A very useful website in English! Here you will find a list of provinces to your left, so click on Aquitane first, then to your right you will see a box, and click on "towns". Followed by clicking on "Dordogne" and then finally La Dornac. From here you will be able to find information on hotels, "gites" (vacation houses for rent), bed and breakfasts, etc.
Others...
http://www.francethisway.com/places/a/la-dornac-dordogne.php
http://www.tripadvisor.co.uk/Resources-g187081-Maps-Dordogne_Region_Aquitaine.html
Others...
http://www.francethisway.com/places/a/la-dornac-dordogne.php
http://www.tripadvisor.co.uk/Resources-g187081-Maps-Dordogne_Region_Aquitaine.html