Many of the microstock stock photography sites have some photos that are available for free. The sites offer these images as incentives to attract visitors but there is no requirement to do anything more than sometimes register on the site in order to download free images. The advantage the microstock sites offer over many regular free photo sites is the availability of higher resolution images and a generally higher quality of photos.
Sites that have a searchable collection of free images
These sites maintain seperate collections of photos and illustrations that can be searched and/or browsed. They therefore offer a very useful resource in your hunt for a free image when you're after something specific.
Dreamstime - Dreamstime have a very user friendly searchable free section that offers high resolution downloads. 123rf - 123 Currently offering over 25,000 free images! Images stay in the free collection for 30 days so the content is constantly being refreshed. FeaturePics - Themed c…
Bottom line; you cannot just grab images from search results and assume it is ok to use them on your blogs. Every image is the copyright of it's creator and unless they have licensed the image to you or made it available under creative commons using it is infringing their copyright.
Given all the tips this blog provides on where to find great images that are free to use there really isn't any need to ignore copyright.
Have a read here of this blogger's experience when they'd been careless about using images without regard to copyright.