Everything on the Web is copyrighted, unless otherwise stated. Therefore, you can’t just grab any image you like. You’ll annoy people if you do that. You need to find sources of free, and low-cost images.
Let’s look at your free options. While there are many sources, and you’ll find your own over the years, these are my own three “go to” sites.
FlickrCC presents you with Creative Commons images from Flickr. Just enter a keyword, and you’ll find a number of images from which you can choose. The images are already sized for you.
Tip: before you use an image, click on the image’s URL, and check the License info for the image on Flickr, to ensure that you can use it on your blog.
You’ll need to sign up for the site. Once you’ve done that, you can browse for images.
Once you’ve found an image you like, check its license. (See the link to View Image License under the thumbnail of the image.)
A popup appears, which will say something like:
You may use the Image
* In digital format on websites, multimedia presentations, broadcast film and video, cell phones.
* In printed promotional materials, magazines, newspapers, books, brochures, flyers, CD/DVD covers, etc.
* Along with your corporate identity on business cards, letterhead, etc.
* To decorate your home, your office or any public place.
You’ll also see where you can’t use the image. Pay attention: you may need to contact the photographer if you want to use the image in certain ways — in templates, etc.
I’ve been using MorgueFile for years. There’s a huge collection, with many different kinds of images; some are taken by highly professional photographers.
Enter your keywords, and search for the images you want. As you mouse over an image, you’ll see it in more detail. When you find an image you want, click on it.
The image will open, and on the right, you’ll see something like:
morgueFile free photo
You are allowed to copy, distribute, transmit the work and to adapt the work. Attribution is not required. You are prohibited from using this work in a stand alone manner.
Before you download, click on the Read the license summary link to make sure you can use the image in the way you wish.
Once you’ve done that you can download and use the image.
IMPORTANT: Always give attribution
Attribution (crediting the photographer, or the site from which you obtained the image) is common courtesy, even if it’s not strictly required.
The above three sites are wonderful resources. Have fun finding images for your blog.