Google Shared Spaces API

deprecated
Google Shared Spaces
Google Shared Spaces are collaborative gadgets based on Google Wave technology. Current gadgets include finding meeting times, simple yes/no/maybe RSVP and shared shopping lists. Developers can use the Google Shared Spaces API to create their own gadgets. Currently the service uses the Google Wave Gadgets API. However, since Wave has been deprecated, these gadgets can run instead in Google Shared Spaces.