I noticed that I’ve been getting a lot of hits for people interested in literacy rates. I reached out to the International Reading Association and received the following list resources. I hope this helps with your goals. Be sure to share other literacy sites encounter by leaving a comment below. Thanks.
Monographs and Reports
ETS has published a number of monographs and reports that detail work on various literacy surveys and studies:
http://www.ets.org/literacy/research/monographs_reports/
National Center for Education Statistics/ NCES
http://nces.ed.gov/naal/
National Assessment of Educational Progress
http://nces.ed.gov/nationsreportcard/reading/
Education Trust
www.edtrust.org
UNESCO Institute for Statistics
http://www.uis.unesco.org/ev_en.php?ID=6401_201&ID2=DO_TOPIC
Proliteracy Worldwide
http://www.proliteracy.org/NetCommunity/Document.Doc?id=45
University of Chicago Education Stats
http://www.lib.uchicago.edu/e/su/edu/stats.html