Effectiveness of Interest Groups

"What resource do you think is most necessary for interest groups in order to influence environmental policies? a) Money b) Public opinion c) Contacts d) Control over investment e) Expertise, skilled leadership?"

I think being able to spread "information" is key for interest groups who wish to successfully influence environmental policy. I think it would be good if we can ask people "how informed" they are about specific environmental issues or what kind of information they've been open to in regards to environmental issues/policy. For example: How many times have you heard about the Alberta Tar Sands issues within the last year: 1. More than 5 times 2. More than once but less than 5 times. 3. Never. (just an example) We can also ask through what means the information was communicated, and how many times etc.