BLOGS:
Talos Intelligence
Krebs
Schneier
DarkNet
DarkReading
SECURITY:
ISSA
OWASP
SANS/CAG
MITRE
ALERTS:
Cloudflare Radar
Global Disaster
Global Trade
Earthquakes (USGS)
Global Tsnuami (NOAA)
NETWORK:
DownRightNow
DownFor.io
I-Net Outages
DNSstuff
Net-Tools
MALWARE:
Immunet
ClamAV
VirusTotal
CSIRT
VirusRadar
TOOLS:
Kali Linux
Nessus
OpenDNS
Project Honeypot
Snort.org
SpamCop
WebSniff
WireShark