You can enter areas in, and get all kinds of great info about communities, schools, demographics, etc.
Of course, I recommend you drive out to areas you may be interested in. If you see lots of swingsets and bikes in people's yards, that is a good indicator of a child-friendly neighborhood!
If you are thinking Delaware County, I recommend Havertown...lots and lots of families there!
Riverton Nj is nice right on the delaware river with sailing classes for kids at NJ's oldest yacht club and a great river front walking path. I lived in Riverton for a couple of years great town and taxes aren't killer, but the highschool option isn't the best. Can't speak on Pa counties.
The Philadelphia Inquirer's School Report Card published annually
http://www.philly.com/inquirer/education/school_report_card/
Also, go to http://www.schoolmatters.com -> Select 'Pennsylvania' -> Under 'Search & Comparison Tools', select 'Advanced Search' -> search by county
Hope this information will assist you in determining which neighborhoods will be of interest to you.
