There are a lot of open education resources out there, but sometimes it is difficult to find decent quality ones at the post-secondary level for chemistry. Here I will post links to some of the better places I have found for these resources, feel free to add some more that I may have missed in the comments.
UC Irvine Open Courseware (entire courses lecture videos available): http://ocw.uci.edu/collections/open_chemistry.html
Merlot Chemistry Portal: http://chemistry.merlot.org/materials.html
BC Campus Open Textbooks for Chemistry: http://open.bccampus.ca/find-open-textbooks/?subject=Chemistry
General chemistry virtual textbook (Stephen Lower, SFU): http://www.chem1.com/acad/webtext/virtualtextbook.html
Compound Interest (a blog which features creative commons licensed chemistry infographics etc.): http://www.compoundchem.com/
PhET online simulations: https://phet.colorado.edu/
Itunes U has a wide variety of open education resources, including some for General and Organic Chemistry: https://itunes.apple.com/app/itunes-u/id490217893?mt=8&ls=1