ADSR does some fantastic video courses if you're into electronic music - they're most famous for their renowned Reaktor masterclass as well as hundreds of videos about sound design for synths like Massive, FM8 and Absynth. They also have a lot of mixing videos.
They are now releasing a 5 video course on mixing electronic music which will be FREE for 24 hours on December 13. It comes with the tracks used in the course so you can mix them yourself.
Visit
www.adsrsounds.com on December 13 for more details.