Department of Ed. calendar with important dates:
http://schools.nyc.gov/ChoicesEnrollment/Middle/Calendar/default.htm

Department of Ed. Middle School Directory for Brooklyn.
Parents can download their local directory here, PS10 is in District 15.
http://schools.nyc.gov/ChoicesEnrollment/Middle/Publications/Brooklyn/default.htm

Take a Middle School Tour with Your Tween on About.com
http://tweenparenting.about.com/od/educationissues/a/SchoolTour.htm

How to Apply for NYC Middle Schools on InsideSchools.org
http://insideschools.org/middle/

Middle Schools

Math & Science, P.S. 447
http://ms447brooklyn.weebly.com/index.html

Mark Twain, I.S. 239
http://is239.schoolwires.com/site/default.aspx?PageID=1

Nest+M,
www.nestmk12.net/admissions/middle-school

I.C.E.
www.iceschool.net/group_profile_view.aspx?id=9574a6c9-d7a7-43f1-9ecb-c0e035d7e132

M.S. 88
http://ms88.schoolwires.net/ms88/site/default.asp

Urban Assembly Academy of Arts and Letters
http://www.uaaal.org/

Books with helpful information

'New York City's Best Public Middle Schools' by Clara Hemphill
www.amazon.com/York-Citys-Public-Middle-Schools/dp/0807749109/ref=pd_sim_b5