Where should a classroom teacher look to find useful games and simulations? This has been my major concern because there is no place teachers can go to find the different games and simulations available by topic or age-appropriateness. In this era of National Digital Libraries, it would be good to have one place where teachers can access available games and simulations resources easily. I have used the Physics 2000 simulations (http://WWW.coloradoedu/physics/phet/Web-pages/simulations-base,html) while teaching modem physics for the International Baccalaureate program at the Emirates International School in Dubai, United Arab Emirates. I vividly recall students’ fascination With this resource for testing their ideas, for example on interference and polarization, and leam more about 20th century science and technology. I also used the Physlets, physics applets (http://webphysicsdavidson.edu/Applets/Applets.html), which are small flexible Java simulations designed for science education as a resource. Physlets are used by several physics teachers around the world for classroom demonstrations, peer instruction, and media-focused homework, and just-in-time teaching of introductory and modern physics. The PhET website at http://phet.colorado.edu hosts over 50 sims that are designed to increase student engagement and learning (Perkins et al., 2006) on common physics topics such as motion; work, energy, and power; sound and waves; heat and thermodynamics; electricity and circuits; light and radiation; quantum phenomena; chemistry; mathematics tools; and cutting edge research.