East Timor: A Brief History - Interactive guide by the Guardian, UK.
East Timor Brief History - An overview on the history of the country by ETRA.
East Timor Revisited: Ford, Kissinger and the Indonesian Invasion, 1975-76 - Edited by William Burr and Michael L. Evans and published in the National Security Archive Electronic Briefing Book No. 62. Includes original documents [pdf].