Delta SkyMiles members have until the end of this month to earn 2,000 bonus miles for contributing $50 to the Washington, D.C. Martin Luther King Jr. National Memorial Project, or you can earn 5,000 bonus miles for a donation of $100 or more. Contributions will support the creation of a four-acre memorial site near the National Tidal Basin in Washington, D.C. Visit http://www.BuildTheDream.org to donate. Only the first 5,000 members to donate will get bonus miles.