Create a technical drawing, flowchart or floor plan at Gliffy. You will receive a number of free gliffies to "try them and see."
Sample floor plan
October 2009 in this blog features 16 free online Web 2.0 tools to enable creativity and sharing in the classroom. The focus is on choosing tools to support higher order thinking and Quality Teaching. A 10 hour training module encourages self-paced individual creation of resources for IWBs, using these tools. It can also be used with groups in after-school workshops. Individuals and groups share their products in a blog or in the module wiki at http://rapzone.wikispaces.com/