Map of labolatories at MIM UW by @miskow and @styczynski
The extension is a Chrome-ported version of awesome tool made by Tomasz Miśków (available there: github.com/tomasz-miskow/labmap)
It's designed and maintained by me (Piotr Stcyzyński) as an open source free-time initiative.
The extension shows current status and load of computer labs in Faculty of Mathematics, Informatics and Mechanics (University of Warsaw).
Feel free to contribute and submitting new issues! :)