"1: OpenBravo
Are you looking for your next ERP application? If so, do not overlook OpenBravo. This tool is a small-footprint powerhouse that includes integrated accounting, sales/CRM, procurement, inventory, production, and project/service management. OpenBravo also features single-instance to multiple tenants, organizations, localizations, and warehouses. It is every ERP tool you will need in one open source toolbox. If just want to evaluate it, you can try a virtual machine with OpenBravo. But to download a package, you will have to walk through a questionnaire. Warning: Someone might try to sell you something!
"2: OpenNMS
OpenNMS should have no problem winning you over. This tool is a serious network management platform. OpenNMS offers three main areas: service polling, data collection, and event/notification management. Its feature list is pretty impressive and includes node listing, searches, outages, path outages, events, alarms, surveillance, and distributed status."