The S I M P A G E: https://simpage.net/
This over here is a simcity fansite that's been stuck in time since the year 2003. Here you can find tips for simcity, look at old polls and check out the news archive. I alway's found this site kind of interesting as shows what was going on in the community at the time. And if you own Simcity 4, there's also a few maps you could download!
For those who like to get eaten by zombies: https://zomboid.pro
I think the guy that hosts this site may like Project Zomboid... In all seriousness, even though it doesn't have too much to do with Project Zomboid besides the theme, it's still a pretty cool site with plenty of stuff to look at, including a blog and a collection of artwork made by the webmaster themselves. Also, the site has Spiffo! At that point I have to add it!
