Zecharia Sitchin

Some good sources analysing and criticising Sitchin:
 * Zecharia Sitchin's Errors: An Overview
 * Zecharia Sitchin's World
 * Ian Lawton's Mesopotamia Papers
 * An Astronomer's View of the Akkadian Seal by Tom van Flandern
 * Sitchin's Sumerian Astronomy Challenged