Join us Tuesday, July 15, at noon U.S. Eastern time for a live online discussion about tools and tricks nonprofit leaders can use to improve their presence on the Internet without spending a lot of money.

Answering your questions will be:

• Beth Kanter, a nonprofit-technology consultant in Boston who specializes in helping charities use social-media tools.

• Jonathon D. Colman, associate director of digital marketing at the Nature Conservancy, where he leads the strategic marketing and promotion of the organization’s Web site.

These discussions are free and open to everyone. People who ask questions in advance have a better chance of getting answers.