chromeextensions-knockoutjs
The source code for the chrome dev tools extension that allows you to easily debug knockout js apps.
Extension in Chrome App Store: https://chrome.google.com/webstore/detail/knockoutjs-context-debugg/oddcpmchholgcjgjdnfjmildmlielhof
See the context in the sidebar of the elements panel
Trace any change of your viewmodel with the knockout panel
You can also edit viewmodel values: https://github.com/timstuyckens/chromeextensions-knockoutjs/wiki/Editing-viewmodel-binding-values