Keep in mind working papers (not yet, perhaps never to be published), preprints, collections of conference presentations, and symposia.

• Berkeley Law Scholarship Repository
• bePress Legal Repository (of which the Law Commons is a component)
•  SSRN (forthcoming scholarship)
• Legal Scholarship Blog (Carries news of upcoming  conferences and can alert you to forthcoming scholarship)
• Conal Conference Alerts (Prospective roster of academic conferences worldwide)
• Registry of Open Access Repositories  (ROAR, tracks worldwide repositories)