Experts in cluster, cloud and grid computing areas are invited to share their expertise with the community by submitting proposals for tutorials to be presented at the CCGrid '12 conference to be held in Ottawa, Canada from May 13-16. The CCGrid '12 tutorials program will give attendees the opportunity to explore a wide variety of important topics related to cluster, cloud and grid computing and other related aspects. CCGrid '12 invites proposals for introductory, intermediate, and advanced tutorials, either full-day (six hours) or half-day (three hours). The deadline for submissions is February 17th, 2012. More information on the CCGrid '12 Call for Tutorials can be found here: http://www.cpsc.ucalgary.ca/~simmonds/CCGrid2012/ CCGrid '12 website: http://www.cloudbus.org/ccgrid2012/ Regards, Sushil K. Prasad and Rob Simmonds CCGrid '12 Tutorials co-chairs