This is from a radical rightwing place, but has a really good list of counter recruitment places, complete with descriptions and websites. Here are the first couple paragraphs from the story mentioning groups, and a list of the websites they mention in case you don't know about them and don't want to visit the conservative's website. I know of some of these groups, am involved with some, but do not know them all.
http://www.codepink4peace.org /
http://www.notyoursoldier.org /
http://www.leavemychildalone.org /
http://www.workingforchange.com /
http://www.unitedforpeace.org /
http://www.campusantiwar.net /
http://www.campusantiwar.net /
http://www.objector.org/before-you-enlist.html http://www.objector.org/recruiting.html http://www.warresisters.org /
http://afsc.org /
http://www.veteransforpeace.org /
http://www.youthandthemilitary.org /
http://www.saltlaw.org /
http://www.campusactivism.org/displaycampaign-75.htm The latest attack on the U.S. by its Fifth Column enemies is aimed at stopping the Armed Forces from enlisting new recruits. Faced with a flagging anti-war movement, leftist agitators have shifted gears and are now subverting the War on Islamist Terror by trying to destroy America’s ability to maintain a fighting force. Though so far limited in success, this counter-recruitment movement is growing quickly and threatens to wreck America’s ability to defend itself from its enemies.
Nation-wide there are hundreds of small organizations involved in this counter-recruitment movement. They formulate strategies based on those of prominent traditional pacifist groups. Almost all of them are directed by a handful of well established “social justice” and “peace” groups with long histories of anti-U.S., pro-communist and pro-totalitarian alignments and agendas. All the larger pacifist and radical groups work with each other, with the smaller groups and with the Legal Left to coordinate what amounts to a broad national movement.(more)
http://frontpagemagazine.com/Articles/ReadArticle.asp?ID=18720