It is important to be listed in these directories. Your site can be used to educate the public regarding an important social problem. You want to grab their attention and educate at the same time. If your organization is more local to your city or state you would provide links to organizations in other states which deal with the same issues. This provides a means of sharing information between like minded organizations and opens your site to a larger audience.
Reciprocal links provide an excellent means of exchanging information.
Fundraising The web provides a means of posting complete information regarding your fund raising events. Posters, newspaper articles, etc. should include your URL for further information regarding your organization. There are several ways for donors to make direct donations without worrying. If your server host provider includes the use of a secure server, you can now easily be setup to accept donations via the internet. Online forms make this process simple for users.