Apple has closed its Tech Info Library (TIL). All queries are now being directed to its finally complete Knowledge Base, the interactive user-library for technical questions and information.
Knowledge Base only contains information relevant to Macs, software and operating systems going back to November 1997. Archived TIL material for Apple products from before this date are being maintained in a separate Knowledge Archive. This archive is searchable, but not to the same extent as Knowledge Base.
UPDATE: The European TIL remains active this morning. This is a complete mirror of information previously available through the US-based TIL. It is not known how long the European site will be available.