Really enjoyed the Audio Foundations: EQ and Filters course on Lynda.com. Brian Lee White is a great instructor and did a fantastic job. Highly recommended if you have ever wanted to understand how EQ can affect your tracks/mixes.

One idea he brought up that I’m looking forward to trying out in particular is to use two different types of EQ on a track. A transparent one for corrections (cutting) and a vintage styled one for added color (boosting).