diff --git a/pl/cross/tools/ide/ru/openide.txt b/pl/cross/tools/ide/ru/openide.txt
new file mode 100644
index 000000000..3f91bb4b4
--- /dev/null
+++ b/pl/cross/tools/ide/ru/openide.txt
@@ -0,0 +1,7 @@
+https://openide.ru/
+
+https://t.me/importozames
+https://t.me/importozames/316337
+
+2025
+https://habr.com/ru/companies/spring_aio/articles/903856/
diff --git a/science/algo/yandex-handbook.txt b/science/algo/yandex-handbook.txt
new file mode 100644
index 000000000..10a669c07
--- /dev/null
+++ b/science/algo/yandex-handbook.txt
@@ -0,0 +1,4 @@
+https://education.yandex.ru/handbook/algorithms
+
+https://www.youtube.com/@Education_Yandex
+https://t.me/education_yandex