Add Inventory Management section

README.md

@@ -24,7 +24,8 @@ Also check out the [PCB/EDA software list](http://www.eevblog.com/forum/eda/pcbe
 - [CAD Specific](#cad-specific)
   * [KiCAD](#kicad)
   * [Eagle](#eagle)
-- [PCB batching services](#pcb-batching-services)
+- [PCB Batching Services](#pcb-batching-services)
+- [Inventory Management](#inventory-management)
 - [Blogs](#blogs)
 - [Forums](#forums)
   * [Discussion](#discussion)
@@ -86,16 +87,20 @@ Also check out the [PCB/EDA software list](http://www.eevblog.com/forum/eda/pcbe
 - [Adafruit Eagle Library](https://github.com/adafruit/Adafruit-Eagle-Library)
 - [SparkFun Electronics Eagle Libraries](https://github.com/sparkfun/SparkFun-Eagle-Libraries)
 
-
 ## PCB Batching Services
 - [PCB Shopper](http://pcbshopper.com) - Comparison service for quite a lot of different PCB batching and assembly services.
 - [OSH Park](https://oshpark.com) - Low cost PCB batching service with high quality boards with a signature purple silkscreen.
 - [Dirty PCBs](http://dirtypcbs.com) - Low cost PCB batching service that prides itself on its "dirty" quality
 
+## Inventory Management
+- [Partsbox.io](https://partsbox.io) - Web service to manage your part inventory with a nice user interface and Octopart integration.
+- [Partkeepr](https://partkeepr.org) - Open source web service to manage your part inventory.
+
 ## Blogs
 - [Hackaday](https://hackaday.com) - Probably the most popular blog covering electronics and hardware hacking.
 - [bunniestudios.com](https://www.bunniestudios.com) - Andrew 'Bunnie' Huang covers hardware hacking, open hardware, manufacturing and more.
 
+
 ## Forums
 
 ### Discussion