http://www.nagc.org/index2.aspx?id=5072
http://www.sengifted.org/archives/a...ceptability-of-extremely-gifted-children
http://www.tagpdx.org/accelera.htm#General%20Discussion

Start with these. The DYS database, Sengifted database, and CTY databases have a few.

Nation Deceived is good to fall back on though written rather strongly.