Here’s a great infographic from Blackbaud, one of the leaders in nonprofit fundraising and communications software, who gathered some impressive stats from their user base. Key insights: online donors are younger, have higher incomes, and give more initially and over time than offline donors. The bad news? Online is only 10% of current donation revenue. The good news? Online giving increased 34.5% in 2010. But the kicker? Combining online and offline marketing to the same donor base increased revenues threefold. Read more here.