CK-12 Foundation
Ck 12: Polarity and Intermolecular Forces
[Free Registration/Login may be required to access all resource tools.] The following online tutorial describes how the electronegativity difference between two atoms in a covalent bond results in the formation of a nonpolar covalent,...
Khan Academy
Khan Academy: Test Prep: Mcat: Chemical Processes: Covalent Bonds: Intramolecular and Intermolecular Forces
Explains what intramolecular and intermolecular forces are and the different types for each. Includes lots of examples.
Michael Blaber, PhD
Fsu: Basic Concepts of Chemical Bonding: Polarity and Electronegativity
Florida State University provides an explanation of electronegativity of elements and its affect on bond type.