1A stock image staple for more than 10 years, iStockphoto offers millions of royalty-free photos, illustrations, videos, and audio files. The site features easy browsing by category and a powerful search engine, and images are tagged with lots of keywords to help you find just what you’re looking for. There’s a wide range of pricing on iStockphoto, from 1 to 150 credits per image, with credits costing between 95 cents and $1.50.

2 More than 20 million stock photos and illustrations can be found on Shutterstock, searchable by keyword or found by topic category like Beauty/Fashion, Food and Drink, or Healthcare/Medical. While the costs are a little on the high side, with individual images for $19 (less if you buy bulk), you can get a deal with a subscription if you use a lot of images.

3Fotolia also features more than 20 million royalty-free images, and a better deal on price, although many aren’t quite as high quality in our view. With subscription plans and bulk discounts, images are priced as low as 19 cents each. You can get a daily or monthly subscription, or pay as you go with a credits system.

4Photos, illustrations, backgrounds, patterns, and more are available on Bigstock. The libraries are sorted by collection and category, and there’s also a highly effective search engine. Like the other big stock image sites, you can buy either credits or subscriptions. Credits (it takes more credits to buy larger images) average out to 99 cents per image, while subscriptions drop the per-image price to 46 cents or less.

5With more than 11 million images and more added every day, Depositphotos is very likely to have just the image you’re looking for. The prices are great, too. Some of the bigger stock photo sites, like Dreamstime, Shutterstock, and iStockPhoto, advertise “pennies per image” but require expensive subscriptions to get those cheap bulk prices. With Depositphotos, you can buy as few or as many as you need, and still average from $1 to $5 per photo. Their lowest subscription plan, at $69 per month, gives you five images a day and comes out to about 49 cents per photo — more than enough for your blog.

6This site contains more than 5 million high-quality images with a simplified, reasonable pricing structure. At Photos.com, you can buy single images, image packs, or a subscription. Subscriptions run for 3 months, 6 months, or 1 year, with the year subscription giving you 19-cent images. Single images and image packs start at $1.99 per image, and go down to 90 cents each when you buy 50 images for $45. It’s a much easier system than the credit-based purchasing used by most large stock image sites, and the selection is fantastic.

7At 123RF, you’ll find almost 20 million images, including photos and vectors, with prices as low as 21 cents with subscription plans, and from around 68 cents to $2 for small or medium-size images that are suitable for blog posts. While this site does use a credit system, it’s more straightforward than most.

8A combination image bank and social media site, Stock.XCHNG provides images completely free of charge for use on websites and blogs, in exchange for a linkback and credit to the photographer. The site features more than 350,000 high-quality photos to choose from. Just be sure to read their image license agreement before posting an image.

9Another totally free site, MorgueFile is a photo sharing community that charges nothing to download and display high-resolution photos and images. Attribution is not required for nearly all images, but check out the uploader’s notes, because some request attribution or a link as a courtesy — and it always pays to be polite.

10This wiki site has nearly 17 million media files, most of them images, which are free for use under the Creative Commons license. Wikimedia Commons lets you search by keyword and also has a category tree by topic on the main page for easy browsing. There are plenty of quality photos, images, and clip art to be found here.