One of a growing number of open source DAM projects where commercial vendors offer hosted options, ResourceSpace is gaining a reputation as a free and easy-to-use DAM. On the other hand, it's limited to simpler DAM scenarios, unless your organization is rich with programming talent, or you wish to pay a 3rd party to extend it.
ResourceSpace operates on a relatively permissive license, which allows development on the product without being obliged to share code back with the community. This allows you to become "master of your own destiny," less encumbered by the rules and expectations set by the open source community. Unfortunately it also means that feature development depends on a small number of dedicated programmers, so innovation comes more slowly than comparable DAMs.
If you’re interested in open source platforms and want to know more about ResourceSpace and similar vendors, then have a look at our latest evaluation report. There you can compare ResourceSpace to other open source DAM projects like Duraspace, Nuxeo, and Razuna.