diff --git a/pl/cross/messaging/kafka/docs/presentations.txt b/pl/cross/messaging/kafka/docs/presentations.txt
index 199dacf14..1b4da775a 100644
--- a/pl/cross/messaging/kafka/docs/presentations.txt
+++ b/pl/cross/messaging/kafka/docs/presentations.txt
@@ -4,7 +4,7 @@ Kafka Summit 2017:
 https://www.youtube.com/watch?v=ySf7bDBHRUQ
 
 2024
-Otus - Kafka and ClickHouse 37:00 of 1:41:20
+Otus - Kafka and ClickHouse 50:00 of 1:41:20
     https://www.youtube.com/watch?v=Jp1SEm4UU48
 Spectr - Koreysha - Apache Kafka Typical Erors 12:00 of 54:46
     https://www.youtube.com/watch?v=FGETRVOPdiA
diff --git a/pl/java/features/stream/features/collectors.txt b/pl/java/features/stream/features/collectors.txt
index acb955b4d..d259d4d71 100644
--- a/pl/java/features/stream/features/collectors.txt
+++ b/pl/java/features/stream/features/collectors.txt
@@ -11,6 +11,10 @@ https://www.baeldung.com/java-list-find-duplicates
 CodeDecode - Most Complex Stream Operation in Java 8 0:00 of 38:10
     https://www.youtube.com/watch?v=VGVS_i-XvxY
 https://www.delftstack.com/howto/java/java-stream-distinct-by-property/
+2021
+Tsymbalyuk - Collectors Class 0:00 of 32:27
+    https://www.youtube.com/watch?v=HOQpQWK9u28
+        https://drive.google.com/file/d/1tC07o0FQov5If6HZfsTIy_2Q9ulQ4FNu/view
 2019
 https://4comprehension.com/an-ultimate-guide-to-java-stream-api-collectors/
     toUnmodifiableList/Set/Map
diff --git a/pl/java/features/stream/features/spliterator.txt b/pl/java/features/stream/features/spliterator.txt
new file mode 100644
index 000000000..8aae72993
--- /dev/null
+++ b/pl/java/features/stream/features/spliterator.txt
@@ -0,0 +1,3 @@
+2021
+Tsymbalyuk - Spliterators 0:00 of 36:25
+    https://www.youtube.com/watch?v=V5w5Dos245o
diff --git a/science/ai/code-assist/articles.txt b/science/ai/code-assist/docs/articles.txt
similarity index 100%
rename from science/ai/code-assist/articles.txt
rename to science/ai/code-assist/docs/articles.txt
diff --git a/science/ai/code-assist/docs/presentations.txt b/science/ai/code-assist/docs/presentations.txt
new file mode 100644
index 000000000..7315271ac
--- /dev/null
+++ b/science/ai/code-assist/docs/presentations.txt
@@ -0,0 +1,3 @@
+2024
+JUGNsk - Kogun - Big Fight of AI Assistants 37:00 of 1:10:47
+    https://www.youtube.com/watch?v=x0EZRFmaKUg