CGI rendering is the first and very illustrative case of real Golem usage. Rather than using costly cloud-based services or waiting ages for one's own machine to complete the task, CGI artists can now rent compute resources from other users to render an image quickly. The payment from a requestor (in this case, a CGI artist) is sent directly to providers who made their resources available. In addition, when the artist's machine is idle, it can itself accept tasks from other users.
Please note that all transactions are run on our own Ethereum testnet, which means that tokens hold no value at all.
Golem Project is a work in progress. Current version is an alpha stage of Brass Golem and it is not fully secure. Be sure that you understand the risk before installing the software.
Golem is open source and distributed under GPLv3 license.