@ -460,6 +460,7 @@ _[Extensible Messaging and Presence Protocol](https://en.wikipedia.org/wiki/XMPP
- [OpenCFP](https://github.com/opencfp/opencfp) - OpenCFP is a PHP-based conference talk submission system. `MIT``PHP`
- [OpenConferenceWare](http://openconferenceware.org/) - Open source web application for supporting conference-like events. This customizable, general-purpose platform provides proposals, sessions, schedules, tracks, user profiles. ([Source Code](https://github.com/osbridge/openconferenceware)) `MIT``Ruby`
- [pretalx](https://pretalx.org) - Web-based event management, including running a Call for Papers, reviewing submissions, and scheduling talks. Exports and imports for various related tools. ([Source Code](https://github.com/pretalx/pretalx)) `Apache-2.0``Python`