Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
SABnzbd - SABnzbd is a free/open-source cross-platform binary newsreader written in Python.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
NZBGet - The most efficient usenet downloader.
Bylde - Bylde is a SaaS platform you can use to Start, Manage and Grow your groups and communities.
GrabIt - GrabIt is a free application that enables you to easily find and download content from Usenet news...