For a decent review of the core principles of socialism, you should give this a couple of viewings. There's a lot in these 6 minutes, but it's pretty good (have a pen and paper to hand for noting!): www.youtube.com/watch?v=QYm-9M4D7GM
Socialism Noting Guidance Sheet:
Text book 5 socialist thinkers compared, research exercise work sheet:
REVISION
For reminders/insights into who the key thinkers are, try this:
And for reminders into the 4 core strands (Human Nature, Society, Economic, the State: