Once you determined both your sources of power and the sources of power of who you are trying to influence, you can decide on strategies for influence.  Understanding which of the power sources a group or individual has will help you decide on a corresponding strategy.
Strategies to influence:

•Connection – make sure the idea you are proposing is connected to the work your group is involved with
•Credibility – be honest, open, non-self-serving and straightforward
•Communication  - gain access to a large, broad communication network
•Compatizility – do not present ideas in a way that seems entirely opposite to the person or group you are trying to influence
•Solvability – make sure the idea you propose is doable
•Payoff – talk about the long-term gain of the idea you are proposing
•Expertise – explain how the individual or group you are approaching has important expertise to contribute to the idea
•Responsibility – explain how a person or group in a particular position has a responsibility to address particular issues and ideas  
•Presentation  - present your idea clearly and optimistically with any supporting data and information
•Bundling  - point out relationships between your ideas and the ideas already supported by the group or individual
•Coalitions  - point out other individuals or organizations supporting the idea
•Visibility – present ideas in public forums to ensure multiple people hear the idea