diff --git a/pl/cross/io/fileformats/xmlstar/a.xml b/pl/cross/io/fileformats/xml/xmlstar/a.xml
similarity index 100%
rename from pl/cross/io/fileformats/xmlstar/a.xml
rename to pl/cross/io/fileformats/xml/xmlstar/a.xml
diff --git a/pl/cross/io/fileformats/xmlstar/indexrep.bat b/pl/cross/io/fileformats/xml/xmlstar/indexrep.bat
similarity index 100%
rename from pl/cross/io/fileformats/xmlstar/indexrep.bat
rename to pl/cross/io/fileformats/xml/xmlstar/indexrep.bat
diff --git a/pl/cross/io/fileformats/xmlstar/xmlstar.txt b/pl/cross/io/fileformats/xml/xmlstar/xmlstar.txt
similarity index 100%
rename from pl/cross/io/fileformats/xmlstar/xmlstar.txt
rename to pl/cross/io/fileformats/xml/xmlstar/xmlstar.txt
diff --git a/pl/cross/io/fileformats/xml/xpath.txt b/pl/cross/io/fileformats/xml/xpath.txt
new file mode 100644
index 000000000..566f4a27d
--- /dev/null
+++ b/pl/cross/io/fileformats/xml/xpath.txt
@@ -0,0 +1 @@
+https://devhints.io/xpath
diff --git a/pl/docs/cheatsheet.txt b/pl/docs/cheatsheet.txt
new file mode 100644
index 000000000..d24e76a77
--- /dev/null
+++ b/pl/docs/cheatsheet.txt
@@ -0,0 +1 @@
+https://devhints.io/
diff --git a/pl/web/dom/dom.txt b/pl/web/dom/dom.txt
deleted file mode 100644
index 12493eeb6..000000000
--- a/pl/web/dom/dom.txt
+++ /dev/null
@@ -1 +0,0 @@
-https://developer.mozilla.org/en-US/docs/Web/API/Document_Object_Model
diff --git a/pl/web/dom/collections.txt b/pl/web/js/features/dom/collections.txt
similarity index 100%
rename from pl/web/dom/collections.txt
rename to pl/web/js/features/dom/collections.txt
diff --git a/pl/web/dom/articles.txt b/pl/web/js/features/dom/docs/articles.txt
similarity index 100%
rename from pl/web/dom/articles.txt
rename to pl/web/js/features/dom/docs/articles.txt
diff --git a/pl/web/dom/cheatsheet.txt b/pl/web/js/features/dom/docs/cheatsheet.txt
similarity index 100%
rename from pl/web/dom/cheatsheet.txt
rename to pl/web/js/features/dom/docs/cheatsheet.txt
diff --git a/pl/web/js/features/dom/dom.txt b/pl/web/js/features/dom/dom.txt
index 8f752a1dd..c5bb2534c 100644
--- a/pl/web/js/features/dom/dom.txt
+++ b/pl/web/js/features/dom/dom.txt
@@ -1,4 +1,7 @@
+https://developer.mozilla.org/en-US/docs/Web/API/Document_Object_Model
 https://developer.mozilla.org/en-US/docs/Web/API/Document_object_model/Using_the_W3C_DOM_Level_1_Core
 
 https://developer.mozilla.org/en-US/docs/Web/API/Document
 https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelectorAll
+
+https://phuoc.ng/collection/html-dom/
diff --git a/pl/web/dom/imba.txt b/pl/web/js/features/dom/imba.txt
similarity index 100%
rename from pl/web/dom/imba.txt
rename to pl/web/js/features/dom/imba.txt
diff --git a/pl/web/samples/30sec.txt b/pl/web/samples/30sec.txt
new file mode 100644
index 000000000..afeb18d78
--- /dev/null
+++ b/pl/web/samples/30sec.txt
@@ -0,0 +1 @@
+https://www.30secondsofcode.org/