Critical Mass: A Technical Text File Newsletter Issue #01 (September 9, 1990)
Critical Mass: A Technical Text File Newsletter Issue #02 (November 21, 1990)
Critical Mass: A Technical Text File Newsletter Issue #03 (December 29, 1990)
Critical Mass: A Technical Text File Newsletter Issue #04 (February 5, 1991)
Critical Mass: A Technical Text File Newsletter Issue #05 (December 11, 1991)
Critical Mass: A Technical Text File Newsletter Issue #06 (March 26, 1992)
Critical Mass: A Technical Text File Newsletter Issue #07 (March 26, 1992)
Critical Mass: A Technical Text File Newsletter Issue #08 (December 23, 1992)