PicApp enables you to add the best images for your blog. It has over twenty million images from Getty Images, Corbis and alike, covering wide range of categories like sports, news, entertainment, fashion, travel etc. All images provided by PicApp are free and fully licensed. Moreover, these images come tagged to improve Search Engine Optimization(SEO) and help reader interaction. As all images are licensed, you need not worry about any copyright or license issues.
Photo Dropper is a similar WordPress plugin which lets you add Creative commons licensed images to your blog posts from Flickr. Once installed, just type in a keyword in the ‘Photo Dropper Browse Photos panel’ for the type of images you are looking for, then hit â€œSearchâ€ button. Photo Dropper plug-in will return photos relevant to your search terms from Flickr. Each image loads with options for dropping the image into your WordPress editor in 3 sizes – Small, Medium and Large. You might want to read more about how Photo Dropper works here.
This WordPress plug-in gives you an integration between your WordPress blog and OpenCalais web service. Tagaroo retrieves semantic data like people, places, events, etc. relevant to your blog post. You can use this data as tags on your blog. It will also use these tags to search Flickr for appropriately licensed images for use in your blog posts.