There was a Forbes article[1] last year that linked to a number of studies. If you're looking for a less journalistic take and want to poke around with the data/studies yourself check out GENERA[2] (a database of peer reviewed GMO studies).
FiveThirtyEight did a good piece on the gap between "what the public thinks and what scientists know" and saw the widest margin in the subject of GMO safety[3]. A recent NYT op-ed explains some of the benefits of GMOs and what caused the author to change their stance[4].
[1] http://www.forbes.com/sites/jonentine/2014/09/17/the-debate-...
[2] http://genera.biofortified.org/
[3] http://fivethirtyeight.com/datalab/theres-a-gap-between-what...
[4] http://www.nytimes.com/2015/04/25/opinion/sunday/how-i-got-c...