Here you will find a growing collection of validated and reviewed online resources that are highly recommended to re-inforce your learning in the classroom.

ACLS and chest pain

Firstly, run through the ALS algorithm. I try to run mental rehearsals in my head every now and then since we don't do it that often in real life.

the flowchart is here:

and the guidelines are in section 11 here:
http://www.resus.org.au/policy/guidelines/

For chest pain there's an interesting case here:
http://stemlynsblog.org/cardiology-case-03-are-you-missing-the-stemi/

Amal Mattu does fantastic videos on ECGs, here are a couple of relevant ones:

The website Life In The Fast Lane has great stuff on ECGs too. For example:
http://lifeinthefastlane.com/another-widow-maker/

Musculoskeletal cases and plastering workshop

One hour is not long to cover the entirety of musculoskeletal so if you have a chance please browse the following sites for some background info:

A 5 minute video about shoulder dislocations:

A website entirely dedicated to shoulder relocation, there's lots of good stuff to look at here:
http://shoulderdislocation.net/relocation/kochers

A case-based discussion of the management of open fractures:
http://lifeinthefastlane.com/broken-open/

And also it is really helpful to be aware of the Ottowa knee and ankle rules for the walking/limping wounded:

and make sure you are always on the lookout for the rare find.

http://radiologysigns.tumblr.com/post/100239947426/35yo-woman-with-shoulder-pain-whats-the-not-to

For more detailed information see section 22 of "Tintinalli's emergency medicine : a comprehensive study guide" here (must have CIAP login)