Link	Shared Google Calendar	Google Calendar invites
Others get notification emails	Ja If added to the event explicitly	Ja
Others can edit event	Ja	Ja Only if event creator checks "Guests can modify event"
Custom colors	Ja Per calendar
Each event appears once	Nein Event appears both in the shared and in the personal calendar if invited. Removal from personal calendar marks as "No" in shared calendar.	Ja
Others get event change notifications	Ja If added to the event explicitly	Ja
Event creator notified of RSVPs	Ja If configured via Reminders & Notifications settings	Ja
Inform others of unavailable times	Ja Mark block as busy and just don't invite others	Nein Unless bogus-inviting others to unavailable times as an event
Retrospective of events together	Ja Uncheck other calendars	- Search / filtering?
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