A newsletter for Atari Enthusiasts with posts about Atari video game systems, 8-bit computers, Atari ST and more. If it's Atari, you'll find it here. Free content every week, plus extra content and perks for paid members.
Fun reads about about BASIC, 8 bit Atari, and related stuff.
Personal stories and lessons from inside the rise and fall of the PC revolution
Outrageously rich historical coverage of Microsoft. I have started with his first post and been reading through. It's informative, entertaining, and exceedingly well written.