If you are a local Preservationist or rabid "Old house lover" it is often difficult to know what others are doing in other places. Unless you work in the field and in my case, consult with various neighborhood groups across the country on projects, "networking' in the field of Preservation is often a difficult task.
It's often beneficial for neighborhood groups to see what is working in other cities and see if their ideas could be adapted to your own historic district or community project.
So what has links to 4500 Historical Societies, 7500 History and House Museums, All state Historic preservation offices, over 1000 Main Street groups and historic homes for sale? Its www.preservationdirectory.com
Make sure you have an afternoon or two free to look around.