Online articles on the ancient Indus Valley civilization, usually available as a PDF on another site like

Shikarpur lithic assemblage: New questions regarding Rohri chert blade production

The intriguing question this paper takes on is whether or not chert blade (also known as flint, used for lighting fires) production could have taken place here, 500 km as the crow flies from the Rohri Flint Quarries, a massive site with evidence for mining going back hundreds of thousands of years and covered in detail by numerous scholars.

The Murghabo-Bactrian Archaeological Complex and the Indus Script

An interesting article in which the author discusses the existence of Indus-type seals in the Gulf and Mesopotamian regions, their relationship to trade and other civilizations in the area, including the Central Asian Bronze Age civilization now better known as the BMAC (Bactrio-Margiana Archaeological Complex). After carefully reviewing the evidence for Indus settlers in ancient Mesopotamia, and their use Indus-type seals whose signs are ordered in ways not found within the Indus region proper, she discusses the relationships they may still have had with Indus peoples back home and the role of different kinds of writing in this relationship.