A full lecture from UC Irvine on molecular orbitals.

https://www.youtube.com/watch?v=Zre4RrOYfjg

A resource for reviewing bond and bond order in molecular orbitals.

http://chemwiki.ucdavis.edu/?title=Textbook_Maps/General_Chemistry_Textbook_Maps/Map:_Chemistry_%26_Chemical_Reactivity_%28Kotz_et_al.%29/09:_Bonding_and_Molecular_Structure:_Orbital_Hybridization_and_Molecular_Orbitals/9.2:_Molecular_Orbital_Theory

Two great sources for molecular orbital overview and review.

http://chemwiki.ucdavis.edu/Textbook_Maps/General_Chemistry_Textbook_Maps/Map%3A_Chemistry_%28OpenSTAX%29/08%3A_Advanced_Theories_of_Covalent_Bonding/8.4%3A_Molecular_Orbital_Theory

http://chemwiki.ucdavis.edu/Textbook_Maps/General_Chemistry_Textbook_Maps/Map%3A_General_Chemistry_%28Petrucci_et_al.%29/11%3A_Chemical_Bonding_II%3A_Additional_Aspects/11.5%3A_Molecular_Orbital_Theory

This chart from Washington University in St. Louis is a great resource for additional help with molecular geometries, which is critical in assigning the correct point groups to molecules.