I have reported on some of these articles already, but here's a list from Phil Wolgin, an Immigration Policy Analyst at the Center for American Progress,
The first is the new USA Today report on border violence, basically making the (well researched) claim that the border is safer than ever: http://www.usatoday.com/news/washington/2011-07-15-border-violence-main_n.htm
The second is the NYTimes report drawing from Massey's MMP, that changes in Mexico - both demographic and economic - have made emigration less attractive, and for the first time we are now looking at net negative immigration: http://www.nytimes.com/interactive/2011/07/06/world/americas/immigration.html
Third is a new Pew Hispanic Center report that shows that Mexican American births have far overtaken the number of Mexican immigrants per year: http://pewhispanic.org/files/reports/144.pdf.
Fourth is a RAND Study that shows that the numbers of Mexicans returning home during the recession dropped significantly. http://lawprofessors.typepad.com/immigration/2011/07/number-of-mexican-immigrants-returning-home-dropped-during-latest-recession-rand-study-finds.html