Communities:

For Product people:

Slack:
- Friend’s of Lenny’s Newsletter – There’s a fee of $15/mo or $150/yr that’s worth it if you work in Tech and want to stay in tune with news & discussion, job posts, and meet other professionals — plus the membership includes access to content like example frameworks for product management
- Rand’s Leadership

Slack:
- Health Tech Nerds (HTN) – There’s a fee of $20/mo or $200/yr that’s worth it if you work in HealthTech and want to stay in tune with news & discussion, job posts, and meet other professionals
- Mental Health Startup Community
- Healthcare Homies

ProductTank (by Mind the Product) – Events in ~200 cities worldwide, with talks for product professionals about industry trends, careers, and the craft
The Product Group – People who work in product management and related roles discuss ideas and products in an open discussion format

Startup Digest (by TechStars) – Receive emails about startup news and upcoming events, with options of ~15 cities and ~15 topics
nextNYC (NYC only) – See upcoming events in New York City with topics related to working at tech companies / startups
NY Tech Meetup (by NY Tech Alliance) – See demos, meet others working in tech, and stay in tune with the NYC startup ecosystem via community announcements
Tech in Motion – Events in 14 U.S. cities, with talks about trends in tech and pitches

Codecademy – Learn HTML, CSS, JavaScript, Ruby, Python, and PHP via interactive tutorials (free)
Dash (by General Assembly) – Learn HTML, CSS, and JavaScript via interactive tutorials (free)
Treehouse – Learn HTML, CSS, JavaScript, JQuery, Ruby, and PHP via videos and interactive tutorials (monthly fee)

Founder’s Workbench (by Goodwin Procter, LLP) – Keep in mind that you should still consult with an attorney if you intend to use these (though they could reduce the amount of attorney hours needed)