A simple query on Google Trends shows that people are more likely to be looking at deals than donations/charity/fundraising. My (preliminary) conclusion is that there is a substantial number of people who could be convinced to do donations when they are seeking for a deal. At least this shows that people are more motivated in seeking for deals than donations. If I could bridge these two worlds, I'd be very happy (and charities too).
...where good action meet good deals!