Interesting--Farrell, who is with Human Rights Watch, was linked to the MoveOn.org affiliate Win Without War and Joseph Wilson's efforts there, as Wilson mentions in his book.
If there is a leftist cause, you can usually find Farrell there. He's been a vocal opponent of capital punishment for years. Other organization affiliations per news articles are below.
As of 1995:
*Co-chair of the Committee to Save Mumia Abu-Jamal
As of 1998:
*spokesperson for CONCERN/America, an international refugee aid and development organization
*co-chair of Human Rights Watch's Western region branch
*goodwill ambassador for the United Nations High Commissioner on Refugees.
"So, true to form, the radical [Tabankin] was ready for a radical change. She looked around and realized that she had the biggest number of friends living in Los Angeles--Hayden and Fonda, actors Mike Farrell and Shelley Fabares, liberal guru Stanley Sheinbaum, producer Norman Lear."(snip)
As Mike Farrell, Tabankin's closest friend on the West Coast, maintains...
(snip)
Tabankin is also that rarity in leftist politics--a serious activist with a sense of humor. A case in point, Mike Farrell recalls, was a fact-finding trip to Nicaragua they made together in 1982 where they were surrounded by "Americans who were more full of the revolution than the Sandinistas. And after a while, we'd heard so much rhetoric that at one point Margie looked at me and said, ' This is enough to turn you into a right-winger.' "
*"A one-time nationally known campus radical during the '60s, first woman president of the National Student Assn., and head of VISTA during the Carter Administration, she [directed] two high-profile progressive philanthropies--the ARCA Foundation, which relied on the R. J. Reynolds family fortune, and the Barbra Streisand Foundation, which the singer created in 1986."