Useful Radio Tips, Blogs, Podcasts, etc.
The Pips - tips, blogs, free demo feedback and you can profile yourself for prospective employers
Media Muppet - comprehensive database of media jobs and paid internships, updated daily
The Training section on this very site has examples of good and bad demos, as well as a production guide
SRA Feedback 2013 - feedback from industry experts on FreshAir’s 2013 Student Radio Awards entries