Okay just stumbled onto these old posts by Todd:
http://anarchowhat.blogsome.com/2007/03/08/mass-vs-political-distinction/
http://anarchowhat.blogsome.com/2007/07/17/reply-to-nate-on-mass-and-political-organization/
Let’s talk about mass organizations, what they are and some examples, and the distinctions between mass organizations and mass movements.
Random link dump -
http://www.sojournertruth.net/massorganization.html
http://www.nefac.net/node/795
http://www.ainfos.ca/03/oct/ainfos00539.html
http://www.zmag.org/content/showarticle.cfm?itemid=7614
http://www.historyisaweapon.com/defcon1/rbwstudy.html
http://www.weisbord.org/conquest15.htm
http://www.anarchistnews.org/?q=node/3290
http://www.fdca.it/fdcaen/organization/theory/acqoc/5-2.htm
http://www.fdca.it/fdcaen/organization/org_index.htm
http://nefac.net/node/1272
http://www.anarkismo.net/newswire.php?story_id=2999