PSLawNet -- the online resource for public service careers and employers -- has created a page for students whose start dates have been deferred by law firms. Registration for Virginia Law students and graduates is free.
PSLawNet is serving as a clearinghouse for public interest organizations to post notices
about their willingness to place law firm associates. Accordingly, PSLawNet has, as of today, listed more than 150 internship and pro bono opportunities in several states across the nation. A few of these organizations include the New York City Law Department, The Constitution Project (Washington, D.C.), National Security Archive (D.C.), Texas Appleseed, Advocates for Human Rights (Minneapolis), ACLU (San Diego, Seattle), Lawyers Committee for Civil Rights (San Francisco), Volunteer Lawyers for Justice (Newark), National Center for Refugee & Immigrant Children (Charlotte and Los Angeles), National Juvenile Defender Center (Las Vegas, New Orleans, Houston), etc.
The law firm page provides links to several helpful resources including to the Association of Pro Bono Counsel's Considerations for the Placement of Law Firm Attorneys into Public Interest Organizations, a list of pro bono clearinghouses in several states, to the Pro Bono Institute, the American Bar Association, and to relevant news items.
Previous postings for deferred third years are available here (New Jersey Job Fair -- April 8, 2009), here (NYT), and here (PSLawNet). The Public Service Center remains available to assist students with their individual search for public interest and pro bono opportunities.