Monday, Aug. 2, Dog Days of Summer Happy Hour. Happy hour for professionals and their dogs.

5:30 to 7:30 p.m., Washington Dulles Airport Marriott Pavilion, 45020 Aviation Dr., Dulles. Sponsors: Hinge, Total Strategy and Canine Caterers. Cost: $30; dogs admitted free. Registration is required. Contact: Kim Guarino, 703-378-9655,

Tuesday, Aug. 3, IT Technology Showcase Day. Technology providers will be featuring their latest products, followed by a networking cocktail reception.

9:30 a.m. to 8 p.m., Library of Congress, 101 Independence Ave. SE, Madison Building. Sponsor: Aspen Systems and DC Tech Council. Cost: Exhibit is free. Reception is $30 for DC Tech members and guests, $50 for nonmembers. Registration for reception is required. Contact: Event Web site:

Wednesday, Aug. 4, Start Your Business. Learn about marketing, insurance, plan development and more.

11 a.m. to 1:30 p.m., Rust Library, 380 Old Waterford Rd., Leesburg. Sponsor: Loudoun County Small Business Development Center. No charge. Registration is required. Contact: 703-430-7222, Event Web site:

Thursday, Aug. 5, How to Start a Business. Learn about records, taxes, loans, insurance and marketing.

9 a.m. to 4 p.m., Score DC, 1110 Vermont Ave. NW, 9th floor. Sponsor: Service Corps of Retired Executives. Cost: $50. Contact: Laverne Webb, 202-606-4000, Ext. 287, Event Web site:

Send information on area technology events to at least two weeks in advance. Please model your entry on the information listed above, and include the event date in the subject field of your e-mail.