This page, part of the Abroad View website, has a long list of student volunteer and activist organizations.
Part of Middlebury College's new Center for Education in Action, this site offers resources for a wide variety of student activism, including volunteering, and service-learning.
By Yousaf Ibrahim in Sociology Compass, vol 4, Issue 7, pp 495-504, July 2010. Abstract available on this page; full article by subscription. According to the abstract, the third section of the article "considers the relatively recent application of social network analysis to student protests and the politicising effect of the university campus."
ColorofChange, with the motto "changing the color of democracy," follows the MoveOn.org model (in fact, one of the co-founders came from MoveOn). There are a wide variety of initiatives, from boycotting Fox News for racism to criminal justice reform. There is no particular student arm (at least not per the website) but, like MoveOn, I'm guessing that there is student activity.
Posted by user "yourblackpolitics" on YouTube in June 2008, according to posted description this video is from the rapper Nas and shows that "Black College Students" are standing up against Fox News Racism. Groups mentioned include YourBlackWorld.com, ColorOfChange.org, GreatBlackSpeakers.com and DangerousNegro, as well as Moveon.org.
Descriptions of a wide variety of student associations that are part of Stanford's El Centro Chicano. The list includes various grad student associations (e.g. Latino Engineering Graduate Organization at Stanford or Hispanic Business Students Association), as well as fraternity Gamma Zeta Alpha (Latino-interest) and Lambda Theta Nu (Latina sorority).
The college democrats are also organized into local chapters, and there are similar groups for college republicans, as well as "fringier" groups like social democrats, greens, etc.
CGEU is "a loose-knit coalition of labor unions in the USA and Canada that represent graduate students employed as teachers, researchers, and administrative staff."
This classic student advocacy/civil rights group from the 1960s is still functioning with chapters nationwide and a focus on education-related issues.
Per their mission statement, "an organization directed and funded by Arizona's public university students" and first established in 1974. I assume that many states have similar organizations. Their Links page points to 6 other such organizations, as well as the USSA.
Website for the October 7 (2010) National Day of Action to Defend Public Education. This page includes a roster of endorsing groups, which includes many student groups (bookmarked several of interest). Also links to the Facebook event from Oct 7 and other local events.
By Angus Johnston on student activism (blog) on April 9 2009. In this post, Johnston blogs that, according to the LA Times, more community colleges are building dorms. He posits that this might improve activism on community college campuses, as it is easier to organize residential students than commuters.
Blog of Angus Johnston "a historian and advocate of student organizing." As of Nov 4 2010, blog seemed current and up-to-date. There are links to other related blogs, as well as relevant organizations and resources (all in left navigation).
Per their website, SFA is a "national network of students and youth organizing with farmworkers to eliminate sweatshop conditions and modern-day slavery in the fields."
From the About Us page, Our American Generation is a youth-run think tank based in Seattle Washington. It is unclear for a quick review of the site if the organization is based at the University.
This youth advocacy movement looks to reform education and was started in Baltimore, Chicago, New York, Oakland, Providence, and Salt Lake City.