Canva.com is a great site to create a variety of printed and online media. I used it to boost my businesses online and offline. Here is a quick tutorial on how to create advertisements with Canva.
More about the business I use to Canva with here: http://bit.ly/21JYP4T.
If you have questions, you can email me at firstname.lastname@example.org.
Video URL: https://youtu.be/LKinVMT_ZMk