In the ensuing decade, he was also a National Science Foundation Guest Lecturer, was the founder and Director of Summer Mathematics Institutes at Our Lady of the Lake University in San Antonio, Texas, and earned national recognition for innovative weekly enrichment programs he created for secondary school students, and for in-service programs for elementary and secondary school teachers, all without cost, as Chair of the Alamo District [South Texas] Council of Teachers of Mathematics (1960–1962).

In the late 1960s, Warren was involved in the radical, utopian, alternative, hippie Midpeninsula Free University, including serving pro-bono as its elected General Secretary for three terms.

Warren sold IMJ in late 1979, to Patrick McGovern, the founder of the International Data Group and numerous computer periodicals worldwide, notably including Computerworld.

When AB 1624 took effect on January 1, 1994, it made California the first state in the nation to open all of its computerized public legislative records, statutes, constitution and regulations, to fee-free access via the Internet.

[21] Thereafter, numerous other states modeled their own legislation after AB1624, as evidenced by their use of the same eccentric phrasing that Warren drafted in AB 1624 to describe the Internet, which was relatively unknown at the time: "the largest nonproprietary, nonprofit cooperative public computer network".

This panel advised the Secretary on how-best to implement new mandates for computerizing political-campaign financial statements, and making them timely-available to the public in electronic form without excessive fees.

The majority of Task Force members were from city and county agencies, almost entirely advocating making the records available in electronic form, but only for fees far in excess of direct copying costs.

Aside from the several periodicals and conference proceedings mentioned above, Warren also created, published and edited the Peninsula Citizens' Advocate tabloid newspaper, addressing local rural political issues (very irregularly, 1984–1986).