diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 060260c18..13a5ca196 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -13,7 +13,7 @@ We welcome any type of contribution, not only code. Like for example:
 
 ## Your First Contribution
 
-Working on your first Pull Request? You can learn how from this **free** series, [How to Contribute to an Open Source Project on GitHub](https://egghead.io/series/how-to-contribute-to-an-open-source-project-on-github).
+Working on your first Pull Request? You can learn how from this **free** series, [How to Contribute to an Open Source Project on GitHub](https://app.egghead.io/playlists/how-to-contribute-to-an-open-source-project-on-github).
 
 
 ## Submitting code
diff --git a/docs/api/block_manager.md b/docs/api/block_manager.md
index 2d76d3275..d703db3fe 100644
--- a/docs/api/block_manager.md
+++ b/docs/api/block_manager.md
@@ -171,7 +171,7 @@ blockManager.render();
 
 // Render new set of blocks
 const blocks = blockManager.getAll();
-const filtered = blocks.filter(block => block.get('category') == 'sections')
+const filtered = blocks.filter(block => block.get('category').id == 'Sections')
 
 blockManager.render(filtered);
 // Or a new set from an array
diff --git a/src/utils/Droppable.js b/src/utils/Droppable.js
index 9a13f178d..7ad8ac497 100644
--- a/src/utils/Droppable.js
+++ b/src/utils/Droppable.js
@@ -54,7 +54,7 @@ export default class Droppable {
     method(document, 'pointerup', this.handleDrop);
     method(frameEl, 'pointerout', this.handleDragLeave);
 
-    // Test with touche devices (seems like frameEl is not capturing pointer events).
+    // Test with touch devices (seems like frameEl is not capturing pointer events).
     // on/off(document, 'pointermove', sorter.onMove); // for the sorter
     // enable && this.handleDragEnter({}); // no way to use pointerenter/pointerout
   }