Google vs. Alexandria: On the Virtues of Harvesting Distributed Content

Depositing Open Access content directly in a central repository makes about as much sense a depositing directly in google. The era of central library-like collections is over. OA content-providers will deposit locally, in their own institutional repositories; their contents can then by harvested centrally to build services on them. Deposit mandates, whether from institutions or funders, need to specify that deposits must be institutional, not central.