Arna Karick: http://techsavvyastronomer.io/
...including some tutorials for useful software packages.
Jonathan Fay: www.worldwidetelescope.org - now sponsored by the AAS. Including a free Windows application, a web client, and tools for integration into your website.
Carl Ferkinhoff: Open Science Framework: online lab notebooks: https://osf.io/
Lots of functionality: read-only versions, integration with github, ...
Chris North: www.chromoscope.net
...lots of multiwavelength capability, less zooming capability.
Becky Smethurst: to let you know your python code has finished running: os.system('tput bel') ...details on twitter a few weeks back