Photos, Images & Video Stock
No affiliate links here. Just good resources!
Pixabay - has a great selection of High Quality images that you can use without attribution. They are all creative commons.
Unsplash - free high quality stock photos, beautiful images, free from copyright restrictions.
FoodiesFeed - a great place to get beautiful, high-quality images of food for free!

Librestock - a multisite search engine that scans stock photos from several free image websites, has many high quality images.
Stocksnap - free high quality stock photos, free from copyright restrictions.
Burst - this is Shopify's site of free high-quality stockphotos for websites or commercial use. Super photos here.
Pikwizard - free high quality stock photos which are free from copyright restrictions. Their 'most popular' section is nice to just get a look around.
Strikingly Library - within Strikingly's image library (in the editor) there are many free high quality images and videos.
Inexpensive Photos and Videos
Adobe Stock - high quality images, photos and videos at reasonable prices. Sign up for their 30-day free trial and get 10 images free.
Alamy - high quality commercial images at reasonable prices, UK based.