Welcome to the spring edition of the I-Sim Newsletter! In addition to the regular features, this edition carries highlights of three international conferences/workshops to be held in the U.K. and Argentina, announcements of the 2009 Lifetime Professional Achievement Award, the 2009 Distinguished Service Award, and the 2009 Outstanding Simulation Publication Award. Also please note the corresponding calls for the upcoming year. Details on the slate of candidates, voting instructions, and ballot for the new I-Sim officers and council members appear on the last two pages of this newsletter.