Join us tomorrow at noon Eastern time, for an online discussion exploring how the state of the American economy is affecting charity fund raising.

Experts will be available to take questions about the current giving climate and analyze the trends unveiled in the new edition of Giving USA, the annual tally of American philanthropy.

Joining us online will be:

• Melissa S. Brown, managing editor of Giving USA.

• Richard Belous, vice president of research at United Way of America, in Alexandria, Va.

• Robert Evans, managing director of the EHL Consulting Group, a fund-raising consulting firm in Willow Grove, Pa.

The discussion is open to everyone, not just Chronicle subscribers.

People who ask questions in advance have a better chance of receiving answers during the online discussion.