Maker Trader - Maker Collaboration
Basically this site is an attempt to centralize a database of parts and tools for Makerspaces, Hackerspaces, clubs, groups, etc... Upload or enter your list of parts you're willing to share or sell, fill out your profile information so people can contact you, and use this system to keep track of your inventory of parts and find the parts you need for your project from your fellow makers! It's a Makerspace Shared Inventory Program (or something like that) :)
Even if you don't want to share, this application is great for keeping control of your inventory. I can help you with getting a version set up on your own server for use with your organization.