diff --git a/iap21.md b/iap21.md
index 956785ea5..301e7b25f 100644
--- a/iap21.md
+++ b/iap21.md
@@ -112,7 +112,15 @@
   - http://act.mit.edu/cavs/
   - https://www.ideaflow.io/
   - https://graphcommons.com/
+    - https://www.youtube.com/watch?v=aNLmt7q-W2s
+    - https://www.youtube.com/watch?v=5pdvWszMaLM
+    - https://www.youtube.com/watch?v=2ZRCc-6tRZo
+  - https://graphcommons.com/graphs/a936d1c7-2b52-47ba-bc21-79a2631149d0/selection/47f0218d-e5b1-9ea7-f748-dfa7e7810071 
+  - https://www.youtube.com/watch?v=5pdvWszMaLM 
   - see [[tuesday]] agenda for more examples
+- [[favour kelvin]] on [[animal tracking]]
+  - https://ebird.org/about/resources/finding-birds-with-ebird
+  - https://www.systemanaturae.org/projects/
 
 
 [//begin]: # "Autogenerated link references for markdown compatibility"
diff --git a/journal/2021-01-28.md b/journal/2021-01-28.md
new file mode 100644
index 000000000..c7656109f
--- /dev/null
+++ b/journal/2021-01-28.md
@@ -0,0 +1,3 @@
+# 2021-01-28
+
+- [[nathan schneider]] told me about [[minetest]], a [[minecraft clone]]
\ No newline at end of file
diff --git a/minetest.md b/minetest.md
new file mode 100644
index 000000000..da22d6c63
--- /dev/null
+++ b/minetest.md
@@ -0,0 +1,12 @@
+# Minetest
+
+- [[minecraft clone]]
+- [[go]] https://www.minetest.net
+- [[recommended]] by [[nathan schneider]]
+
+
+
+
+[//begin]: # "Autogenerated link references for markdown compatibility"
+[go]: go "Go"
+[//end]: # "Autogenerated link references"
\ No newline at end of file
diff --git a/nathan-schneider.md b/nathan-schneider.md
new file mode 100644
index 000000000..950eb047b
--- /dev/null
+++ b/nathan-schneider.md
@@ -0,0 +1,9 @@
+# Nathan Schneider
+
+- [[person]]
+- [[mastodon]] social.coop/ntnsndr
+
+[//begin]: # "Autogenerated link references for markdown compatibility"
+[person]: person "Person"
+[mastodon]: mastodon "Mastodon"
+[//end]: # "Autogenerated link references"
\ No newline at end of file