(Sample link) NASA for high school students http://www.nasa.gov/audience/forstudents/9-12/features/index.html
(Sample link) National Geographic http://www.nationalgeographic.com
The New York Times http://nytimes.com/pages/science
Regents Practice exams with answers http://www.nysedregents.org/testing/scire/regentearth.html
Regents Practice exams with answers http://regentsprep.org/
Physics Classroom Hosted by Studyworks! Online http://www.physicsclassroom.com/Default.html
http://www.nylayfaculty.com/
Regents Earth Science