There's also evidence there was at least one high-tech civilization before the Ancient Egyptians

Articles
Christopher Dunn, engineer: Advanced Machining in Ancient Egypt
Jeff Rense Program: 01-06-2005: Ancient Indian Spacecraft and Aircraft Technology (with additional links)
Laura Lee, the Laura Lee Show: Ancient Precision Stone Cutting
Whim's Place - J.M. Cornwell: Atlantis: The Last Resting Place of a Legend
Spydercorner Dot Org: Earth and Solar Anomalies (a 3-yr investigation by a German journalist found the Dropa Stones to be a hoax)
World Mysteries: Strange Artifacts - Ancient Flying Machines

Books
Charles Hapgood, historian, Springfield College, NH:
Maps of the Ancient Sea Kings: Evidence of Advanced Civilization in the Ice Age
Graham Hancock, journalist:
Fingerprints of the Gods : The Evidence of Earth's Lost Civilization
Heaven's Mirror: Quest for the Lost Civilization
Rand Flem-Ath, Rose Flem-Ath, researchers and authors:
When the Sky Fell: In Search of Atlantis

Websites
Aeronautical Society of India:s Ancient Indian (Technical) Works
Giza Power-The Official Christopher Dunn Website
The Official Graham Hancock Website: Introduction