by Mary Whitman

Visuals are the power force of your content marketing campaign. You know it, and you use them pretty often whenever you promote articles, products, and services.

The problem is: it can get quite pricey for you to create strong visuals for each piece of content. That would mean hiring a professional graphic designer or photographer, or purchasing photographs online.

This is where free stock photos come in handy. Yes; they can look cheesy when you opt for the most obvious and most common pick. When you choose carefully, however, free stock photos can pretty cool. You can modify them, so you’ll add …