Flickr is a website that allows users to post and store photos online, offering both a free version and a paid version. In addition to that, Flickr is a community site and it is one of the first places a blogger, teacher or project manager will search for images to use with their material.
The free version of Flickr allows users to create an account and upload up to 20 megabytes of photos and videos per month. The paid version allows up to 2 gigabytes total for a nominal fee per year. Users have the option to mark their photos private so they are not viewed by the community, or they can leave them visible to others. There is also an option to mark photos with a Creative Commons license, which means that other users can download and use the photo for free so long as they cite the original owner of the content.