Now roughly half of all Americans have some kind of Internet connection. They buy books and stocks and even cars online.
Charities have web sites, as do most medium sized and large businesses.
Even politicians have web sites. Everybody's trying to figure out how to make a buck on the Internet, but most are failing. Their sites get few visitors and fewer buyers or contributors. You want hits from people who are likely to contribute in some way to your organization's well being. You need hits from people like that.