Seattle’s nPost event for startups, VC’s and Angels is being held this Tuesday, March 31. Company demos will be held by Yodio, Typidee, Swingvine, CueSense and GroupieGuide. Alternates include ValuValu and Zooppa. Seattle 2.0 is sponsoring the event. Start time is 6pm at the Columbia City Theater (4916 Rainier Avenue South).