IT UNSORTED
Computers	Microsoft Windows hints	→ Linux hints	Cryptography
DNS	ISPConfig	Kali Linux	Critical Bugs / Exploits
Dell OpenManage in Linux	OpenVPN	Linux under Windows	Gamepad
JAVA	WIFI	Micro Cloud
DATABASES
→ Oracle hints	MariaDB / MySQL hints	PostgreSQL	Cassandra
ScyllaDB	Simple Query Language	SQLite + Spatialite	CitusData
INTEGRATION
WSO2 Hints	Loadbalancing	API	Microservices
WSO2 IoT	XSLT	Synapse ESB	Enterprise Architecture
MQTT
STORAGE
LVM	ReadyNAS 5.x	Linux SoftRAID	Samba
SSD	Synology DSM	RSYNC Server	Technology
RAID Calculators	CEPH	Format	Nextcloud
Legacy	S3	SMR
NETWORKING
TomatoUSB	pfSense	Iptables	Bonding 802.3ad LACP
sshtunnel
PROGRAMMING
GIT	FPDF	PHP	Validators
JAVA	UNIXTIME	HTML5	jQuery
BASH
GIS
ArcGIS Server for Linux	Geoserver	ArcGIS for Desktop	ArcSDE
Google KML	ETRS89 Transform	OpenStreetMap	PostGIS
ANDROID
MediaTek MTK Tuning	LTE Speed	LineageOS	OK Google
VIRTUALIZATION
PROXMOX	OpenVZ / PROXMOX	LXC / PROXMOX	NetXMS Agent
PROXMOX CUDA	OpenStack	Virtualization Compare	Kubernetes
DRONES
Drone / Quadcopter (česky)
VIDEO
Video recording hints	Neural Upscale	Live Streaming	FFMPEG encoding hints
Smart TV API	4K, HDR, Dolby Vision	Color Calibration	5.1 Dolby Calibration
ELECTRONICS
ATX Power	Capacitors	Batteries	Meter Precision
SDR	HD Audio Rush
OTHERS
Ritech RIEM3	Creative Audigy2 ZS	Softskills (česky)	HEPA filters
GPS Logger	HW Speed	SNMP MIB	GDPR
Right Mark Audio	AMD AM3+ FX CPU	Biggest EU problems
INTERNET OF THINGS
ESP8266 Basics	D18B20 Temp Sensor	Raspberry PI	Licence Plate
Gree / Sinclair HVAC
LINKS
Netflix TechBlog	blogs.dropbox.com
BLOCKLISTS
		modsecurity

This is my quick remarks, they change rapidly and can be wrong, you are using it at your own risk!