Bill Bartley died in 1990 and so he did not have the opportunity to use email or put his work on line. He has an entry on Wiki but very little of his large output is on line. A website has been created for the Bartley Institute to keep his ideas alive but the site is still under construction.
Some of his papers are on line in the Rathouse with several essays that I have written about his ideas. Most of his papers are slow-loading pdf files, so please be patient!There are three review essays on the Schillp (ed) Library of Living Philosophers volume on Popper.
Critical Review III (rationality)
A chapter from from a collection In Pursuit of Truth
OTHER ARTICLES
From The Retreat to Commitment
Chapter 5. Pancritical rationalism.
Appendix 1. Metacontext for rationality.
Appendix 6. The transmissability assumption.
From Unfathomed Knowledge.