SeniorNet's Huntington center, which serves all of Long Island, will hold its Spring 2009 semester registration for people 50 and older, during an Open House Fri., March 27 from 10 a.m. to 2 p.m., at the Family Service League building, 790 Park Avenue. Guests can tour the modern computer lab and review course choices with our all-volunteer faculty. Classes begin in April and last for 8 weeks. Light refreshments served. For information, call (631) 427-3700 x268.