Your daily knowledge and news

RSS Readers

Feedly - organize, read and share what matters to you.
Inoreader - similar to feedly with a support for filtering what you fetch from rss.

IRC Channels

#hackerspaces - hackerspace IRC channels.

Security

The Hacker News - leading news source dedicated to promoting awareness for security experts and hackers.
Latest Hacking News - provides the latest hacking news, exploits and vulnerabilities for ethical hackers.
Security Newsletter - security news as a weekly digest (email notifications).
Google Online Security Blog - the latest news and insights from Google on security and safety on the Internet.
Qualys Blog - expert network security guidance and news.
DARKReading - connecting the Information Security Community.
Darknet - latest hacking tools, hacker news, cybersecurity best practices, ethical hacking & pen-testing.
publiclyDisclosed - public disclosure watcher who keeps you up to date about the recently disclosed bugs.
Reddit - Hacking - a subreddit dedicated to hacking and hackers.
Packet Storm - information security services, news, files, tools, exploits, advisories and whitepapers.
Sekurak - about security, penetration tests, vulnerabilities and many others (PL/EN).
nf.sec - basic aspects and mechanisms of Linux operating system security (PL).

Other/All-in-one

Changelog - is a community of hackers; news & podcasts for developers and hackers.