Foundler - Online hackathon weekends. Attend every other week.
Challenge Hunt - Explore coding contests, hackathons from around the world
CoFoundersLab - Meet 250,000+ entrepreneurs online
The 24 Hour Startup Challenge - Build startup in 24 hours and win cash prizes ๐ค
Confs.tech - Open source list of tech conferences: JS / Ruby / Data etc.
HackHub - Host tech events and hackathons with ease ๐จโ๐ป๐