graph.tk is an online and open-source graphing utillity. It runs in any modern browser that supports the canvas element. It plots functions, and displays them with style.
"Create a feed from a device, building, environment or sensor connected to the internet and store, share & graph its datastreams in realtime..
Access realtime & historical data from devices, buildings, environments or sensors to control other environments, embed graphs in websites, trigger actions, etc..."
"Gephi is an interactive visualization and exploration platform for all kinds of networks and complex systems, dynamic and hierarchical graphs.Runs on Windows, Linux and Mac OS X. Gephi is open-source and free"
Hype Cycle tracks innovations through stages - technology trigger, peak of inflated expectations, trough of disillusionment, slope of enlightenment, plateau of productivity. Can't see MOOCs any where on this graph!
uses a web browser - students tell the teacher anonymously whether they understand the material or are confused by it - the teacher gets a continuous graph during the lecture. All responses are anonymous.