diff --git a/_sidebar.md b/_sidebar.md
index 8e4d64a..af5b928 100644
--- a/_sidebar.md
+++ b/_sidebar.md
@@ -4,16 +4,18 @@
 
 - [Contribution Guidelines](https://github.com/frappe/erpnext/wiki/Contribution-Guidelines)
 - [Issue Guidelines](https://github.com/frappe/erpnext/wiki/Issue-Guidelines)
+- [Performance Tuning](https://github.com/frappe/erpnext/wiki/ERPNext-Performance-Tuning)
 - [Home](Home)
 - [Pages](https://github.com/frappe/erpnext/wiki/_pages)
 
 #### External Links
 
-* [ERPNext Homepage](https://erpnext.com/)
-* [Frappe Wiki](https://github.com/frappe/frappe/wiki)
-* [Bench Wiki](https://github.com/frappe/bench/wiki)
+* [ERPNext Foundation](https://erpnext.org/)
+* [ERPNext.com](https://erpnext.com/)
 * [ERPNext Forums](https://discuss.erpnext.com/)
-* [ERPNext Documentation](http://frappe.github.io/erpnext/)
+* [Frappe Wiki](https://github.com/frappe/frappe/wiki)
+* [ERPNext Documentation](http://erpnext.org/docs/user/en)
+* [Bench Wiki](https://github.com/frappe/bench/wiki)