Spectacle V0 (previously Startup-Videos) - Showcasing the best startup videos
Foundler - Online hackathon weekends. Attend every other week.
StartupTalks - A curated collection of startup related videos and podcasts
HackHub - Host tech events and hackathons with ease 👨💻🛠
The Innovation Station - A global platform presenting the best videos on innovation
Confs.tech - Open source list of tech conferences: JS / Ruby / Data etc.