A safety-net means that a OnlineCommunity is made less dependent on TheIndividual, and protected from accidents. So good answers to the following questions should be available:
Elements of the safety-net depend somewhat on whether we value ContentOverCommunity, or CommunityOverContent.
Safeguards for the community basically means ensuring that everyone can stay in touch, independantly of the webvsite that originally brought them together - so people know each other's email addresses, telephone numbers, personal websites, blogs, etc, etc. With this backup, contributors can stay in touch, and if necessary StartAgain on a "refugee" website.
Possible safeguards for the community:
Possible safeguards for the content are more technical in nature:
The CommunityLifeCycle teaches us that death and rebirth of communities is inevitable over the LongNow. Any SafetyNet thus has two purposes: to postpone death, and to foster rebirth. These two aims are sometimes in tension - if rebirth is less painful, then this could hasten an inevitable demise.
What about the MeatballSafetyNet?