Flickr is a Web service in which we can upload our pictures and share them openly. This service serves as a source of images for free use .
If you're a Linux user and want to upload images from your desktop, then you can Orifli. Orifli is a free and open source GNU / Linux, with which we can upload images quickly and easily.
The same program will ask permission to upload the pictures, this permit is for pictures to be uploaded successfully. Link: Orifli
