diff --git a/pages/gnu.md b/pages/gnu.md
index f48c9f5..6a421a5 100644
--- a/pages/gnu.md
+++ b/pages/gnu.md
@@ -1,6 +1,5 @@
-tags:: #tech #[[operating system]]
+tags:: #technology #[[operating system]]
 
-	-
 - **prev:** [[operating system]]
 - GNU is an [[]]
 - learn more about gnu at their official website: https://www.gnu.org/
diff --git a/pages/gnu___linux.md b/pages/gnu___linux.md
index cd84648..6566979 100644
--- a/pages/gnu___linux.md
+++ b/pages/gnu___linux.md
@@ -1,4 +1,5 @@
-tags:: #linux #gnu #unix-like #unix #[[operating system]]
+tags:: #technology #linux #gnu #unix-like #unix #[[operating system]]
+
 - prev: [[linux]]
 - an alternative / "more accurate" name for [[linux]]
 - *technically*, the [[linux]] [[open source]] [[operating system]] is actually built upon the [[gnu]] core utilities.
diff --git a/pages/linux.md b/pages/linux.md
index fd97025..06a2618 100644
--- a/pages/linux.md
+++ b/pages/linux.md
@@ -1,3 +1,6 @@
-tags:: #[[operating system]] #computing #unix #unix-like
+tags:: #technology #[[operating system]] #computing #unix #unix-like
+
+- **prev::** [[unix]]
+- (also known as "[[gnu/linux]]".)
 -
-- also known as "[[gnu/linux]]".
\ No newline at end of file
+- **next:** [[open source software]]
\ No newline at end of file