i just wanted to post a few open access journals that i happened upon today:
Critical and Reflective Practice in Education
Journal of Classroom Research in Literacy
Both of these have free peer reviewed research that addresses 'critical' issues in education.
You can also have a look at the Directory of Open Access Journals, which is basically a search engine for all the open access journals on the net, or this list of open access journals in education. There should be enough reading material there to satisfy even the geekiest among us.