diff --git a/logseq/graphs-txid.edn b/logseq/graphs-txid.edn
index 0f87862..28b4563 100644
--- a/logseq/graphs-txid.edn
+++ b/logseq/graphs-txid.edn
@@ -1 +1 @@
-["6819d5ac-7c6b-4965-ba7b-e56686e61416" "e11b5282-195e-40cb-af42-af79882dc719" 495]
\ No newline at end of file
+["6819d5ac-7c6b-4965-ba7b-e56686e61416" "e11b5282-195e-40cb-af42-af79882dc719" 497]
\ No newline at end of file
diff --git a/logseq/version-files/base/pages/gnu.md b/logseq/version-files/base/pages/gnu.md
index 8b3260c..6a421a5 100644
--- a/logseq/version-files/base/pages/gnu.md
+++ b/logseq/version-files/base/pages/gnu.md
@@ -1,5 +1,7 @@
-- tags::
+tags:: #technology #[[operating system]]
+
 - **prev:** [[operating system]]
-- GNU is an
+- GNU is an [[]]
 - learn more about gnu at their official website: https://www.gnu.org/
-- **next:** [[open source software]]
\ No newline at end of file
+- **next:** [[open source software]]
+-
\ No newline at end of file
diff --git a/logseq/version-files/base/pages/gnu___linux.md b/logseq/version-files/base/pages/gnu___linux.md
index 8abd8bb..6566979 100644
--- a/logseq/version-files/base/pages/gnu___linux.md
+++ b/logseq/version-files/base/pages/gnu___linux.md
@@ -1,4 +1,4 @@
-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]]
diff --git a/logseq/version-files/base/pages/linux.md b/logseq/version-files/base/pages/linux.md
index f3e5fa2..06a2618 100644
--- a/logseq/version-files/base/pages/linux.md
+++ b/logseq/version-files/base/pages/linux.md
@@ -1,4 +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
diff --git a/logseq/version-files/base/pages/second brain.md b/logseq/version-files/base/pages/second brain.md
index 3c36fbb..6d422d7 100644
--- a/logseq/version-files/base/pages/second brain.md	
+++ b/logseq/version-files/base/pages/second brain.md	
@@ -2,4 +2,7 @@ tags:: #[[personal knowledge management]] #zettlekasten #knowledge #meta #life
 
 - **prev:** [[personal knowledge management]]
 -
+- ### references
+	- {{video https://www.youtube.com/watch?v=E6ySG7xYgjY}}
+	-
 - **next:**
\ No newline at end of file
diff --git a/pages/second brain.md b/pages/second brain.md
index 3c36fbb..40aa1b7 100644
--- a/pages/second brain.md	
+++ b/pages/second brain.md	
@@ -2,4 +2,8 @@ tags:: #[[personal knowledge management]] #zettlekasten #knowledge #meta #life
 
 - **prev:** [[personal knowledge management]]
 -
+- ### references
+	- tiago forte has really good videos on how to manage your second brain. he even wrote a book on it! i haven't
+	- {{video https://www.youtube.com/watch?v=E6ySG7xYgjY}}
+	-
 - **next:**
\ No newline at end of file