A key part of any spread and adoption sptrategy is the ability to map who is adopting the good idea or better practice. Location is a major factor. Are these people close to one another or separated? What might be the factors meaning there is significant adoption on one part of the Region or Country and not in another? How can we visually note the patterns?
I use http://www.mapbuilder.net/ as a tool for mapping adoption. It is flexible and helps me see who is where and what the patterns might be. It is based on Google Maps (check out the terms and conditions so you understand how it can best be used).