This site is a find for parents wondering about public schools especially and what they are like: their scores on standardized testing, use of computers in the classroom, even parent reviews/comments about the school.
The site also provides really strong articles if you provide your e-mail address that are helpful to parents getting ready for kindergarten, dealing with various discipline or parenting issues and more. Many articles are provided in Spanish as well.
I’m not an educator, and worry sometimes I won’t know how to watch for good curriculum and instruction techniques. An example of a helpful article is one they produced on "Getting Your Child Excited About Math" - an excellent guide telling you what types of things to look for from teachers, things you can do in your every day life with the kids to show them the value of math, etc. Check it out at: http://www.greatschools.net/cgi-bin/showarticle/CA/209
Great Schools claims to have profiles for more than 120,000 public, private and charter schools nationwide.