You don't have to donate to all of them, or even donate at all as long as enough people donate. They tend to feature a call to donation instead of advertising,

You don't have to donate to all of them, or even donate at all as long as enough people donate. They tend to feature a call to donation instead of advertising, with prominent progress bar about how much they need this month/semester/year instead of advertising. Still visual crust, but much more palatable.