Copyright and the internet

According to the Australian Copyright council  (where the information below came from);
a) Copying material from the internet for students is generally OK as long as it really is for 'research' for study and your use is 'fair', however you have to aknowledge your source of information.
b) 'fair' use incorporates ideas like not interfering with the item's market, while research seems to be in order to find information for assignments or projects.
c) Using music in videos that classess (uni or school) make does not seem to be included under the current Australian copyright provisions as music can't be downloaded, though it can be saved for analysis in an educational setting. I found it hard to be entirely clear on this point though, as I couldn't find this specific usage described.