1. Non-profits seek grants from wealthy liberals and philanthropic foundations;
2. Equipped with a little money, non-profits go "organize" various campaigns, employing "grassroots" means ranging from lobbying to emailing/letter-writing/faxing to petitioning to holding demonstrations;
3. Those who actually do the main part of campaigns are generally unpaid volunteers. Not only are they not paid by non-profits, they dip into their own pockets to finance their activities (xeroxing, phoning, etc., bills for which can add up quite a bit) and even send in donations to non-profits;
4a. Unpaid volunteers' personal data -- useful for more direct-mail fund-raising and other campaigns by other non-profits and political organizations -- gets converted into salable commodities;
and
4b. Results of unpaid volunteers' activities -- e.g., the numbers of emails/letters/faxes sent, signatures collected, participants in demonstrations, etc., illustrated with nice action photos -- get converted into salable lines in grant-seeking applications.
4a and 4b pay for the salaries of paid staff of non-profits.
This is probably not exactly "exploitation" in the Marxist sense of the term -- not much surplus value is produced by all the frenetic activities of unpaid volunteers -- but unpaid volunteers do look like they are exploited to pay for the salaries of non-profit staff at least.
Yoshie Furuhashi <http://montages.blogspot.com> <http://monthlyreview.org> <http://mrzine.org>