diff --git a/emudev_resources_general.md b/emudev_resources_general.md
index 8892287..bf53ad8 100644
--- a/emudev_resources_general.md
+++ b/emudev_resources_general.md
@@ -2,7 +2,7 @@
 
 - **Overview of emulation development: <https://stackoverflow.com/a/448689>**
 - **Architecture overview of various consoles: <https://copetti.org/projects/consoles>**
-- An introduction: <http://emulator101.com>
+- An introduction: <http://www.emulator101.com>
 - Docs for various systems: <https://github.com/shonumi/Emu-Docs> (combine with resources below)
 - Emulation blogs: <https://dolphin-emu.org/blog>, [[archived] byuu.net/](https://web.archive.org/web/20201221154920/https://byuu.net/), <http://emudev.de>, [[archived] noxa.org/emulation/](https://web.archive.org/web/20220928023912/http://www.noxa.org/blog/category/coding/emulation/), <http://melonds.kuribo64.net/>, <https://pcsx2.net/blog/tags/devblog>, <https://shonumi.github.io/articles.html>, etc
 - Subreddit: <https://www.reddit.com/r/EmuDev>
diff --git a/emudev_resources_systems.md b/emudev_resources_systems.md
index e1c32f3..2e750e8 100644
--- a/emudev_resources_systems.md
+++ b/emudev_resources_systems.md
@@ -389,7 +389,7 @@ There are no "full" tutorials for other systems, so using references will be a b
 
 ## Multiple systems
 - <https://www.zophar.net/documents.html>
-- <http://emulator101.com>
+- <http://www.emulator101.com>
 - <http://hitmen.c02.at/index.html>
 - <http://www.codeslinger.co.uk> (doesn't respond to https://, disable extensions such as HTTPS Everywhere if it doesn't load)
 - <https://emudev.de>
@@ -407,7 +407,7 @@ There are no "full" tutorials for other systems, so using references will be a b
 - [6502 decimal mode](https://www.atarimagazines.com/compute/issue50/268_1_MACHINE_LANGUAGE.php)
 
 ## 8080
-- [8080 tutorial (among other things)](http://emulator101.com)
+- [8080 tutorial (among other things)](http://www.emulator101.com)
 - [Assembly programming manual](https://altairclone.com/downloads/manuals/8080%20Programmers%20Manual.pdf)
 - [Datasheet](https://altairclone.com/downloads/manuals/8080%20Data%20Sheet.pdf)
 - [Instruction table](https://tobiasvl.github.io/optable/intel-8080/classic)