Internet-Based Software Helps Political Candidates to Get Out the Vote and Cut Campaign Costs by 80 Percent: "According to Voter Lists co-founder Donald Quaid, 'GOTVoters Online levels the political playing field. Even independent candidates on limited budgets can use it to get elected. Our advanced filtering of voter information enables political campaigns to target voters based on their specific concerns and interests. This is considerably more effective than targeting all voters on all issues. In a primary, a candidate can focus on just the 20% of voters who always turn out, saving money and more efficiently utilizing their time."
Go for the most valued customer. Based on this story the stable customer base for politics is about 20% of the potential market.
You would think that 80% of the population would qualify as underserved market that could possibly be a site for explosive growth.