Being quite busy with product & design reviews those days, i recently started to use in-vision to create some clickable prototypes or story boards myself. I encourage you to go and try out their awesome product and also check the great articles on their blog.
So, once i started to read about design, i landed on a design lessons available @ Skillshare, done by an in-vision designer.
This class is 60 minutes long and recap the basics of creating marketing homepage driving good results. From defining the goals to sketching with consideration for hierarchy and user patterns ; creating designs and collaborating and gathering feedback. This is really good to watch and goes back to basics.
check it out : Creating Marketing Homepages That Drive Results