Mobilizon - A free and federated tool to get our events off Facebook
indeed - Find jobs using Indeed, the most comprehensive search engine for jobs.
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
LinkedIn - LinkedIn is a business-oriented social networking service, mainly used for professional networking.
DownToMeet - DownToMeet is a platform to organize, find, and attend group events.
Jobvertise - Free online jobs database, easily post jobs and search resumes.