Screen sharing via the cloud

Years ago I watched demonstrations of early versions of software such as Timbuktu which could, among many other capabilities, allow a teacher to share a screen to all the other computers in a computer laboratory. Although the college remains bandwidth constrained during the business day, today I stumbled into the ability of Google docs to mimic this capacity. 

I had a Google docs spreadsheet open on the SmartBoard in MS 150 Statistics. I had emailed the URL to the students, who then opened the same spreadsheet using the URL I sent. As I made changes on my spreadsheet, the changes were reflected in near-real time on the spreadsheet open on the student's computers.
With the bandwidth future appearing brighter for the college, this capability may become more useful in the classroom.

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