Foundler - Online hackathon weekends. Attend every other week.
Peanut - Peanut is a Mobile Application for moms developed and published by Peanut App Ltd.
HackHub - Host tech events and hackathons with ease 👨💻🛠
CoFoundersLab - Meet 250,000+ entrepreneurs online
Confs.tech - Open source list of tech conferences: JS / Ruby / Data etc.
Flingster - Flingster lets you find local flings for random dates with people from your area.