https://blinkies.cafe/ - awesome website where you can find a whole lot of blinkies, and even make your own!
games & fun
http://vimm.net/ - one stop shop for all your video game emulation needs! you can even play games in the browser, if they're on one of the supported systems
https://www.pointlesssites.com/ - serves as a list of time-wasting websites for when you're bored. some of the items on the list are. youtube videos. for some reason
https://sites.google.com/site/worldofserina/ - Serina: A Natural History of the World of Birds is a really interesting web fiction project focused on speculative evolution. Even if you're not a biology nerd, there's certainly something in there that'll catch your interest, like tripodal hyenas, tentacle-faced birds, or the stories of the many sapient bird-people that emerge throughout Serina's history.