The Social Science Research Council has just issued a guide entitled, Religious Engagement Among American Undergraduates"
The guide is introduced this way: Recent studies of college students' attitudes toward religion suggest that the academy is no longer the bastion of secularism it was once assumed to be. And these studies further reveal that the spiritual landscape on today's college campuses is virtually unrecognizable from what we've seen in the past. Evangelicalism--often in the form of extra-denominational or parachurch campus groups--has eclipsed mainstream Protestantism. Catholicism and Judaism, too, are thriving, as are other faiths.
I poked around the site briefly and it looks interesting. The guide can be found here.
(Im working on arranging a roundtable discussion with campus ministers from across the country. Look for that podcast in the future.)