Google Apps Manager (GAM) is a command line tool that allows Administrators to control their Google Apps domain and accounts. With GAM you can create users, turn on/off services for users like POP and Forwarding and much more. It requires Google Apps Education or Premier Edition. Standard Edition is not supported. Future plans for GAM include even more management capabilities as well as a graphical and Web-based interface.
Symbolic is an enterprise platform designed to build, configure, and manage your huge and globally distributed data centers. It features cloud computing, Web manager virtual environments (Xen, KVM, and libvirt), clustering support, custom operations and scripts support, and user and role definitions.
Virtual Planner is a Web-based project management application which sits on top of multiple Trac projects, providing a unified view of them all. It allows for weekly assignment of work, estimated versus actual job times, a drag and drop Web-based UI, and direct linking to your Trac projects.
libguestfs is a set of tools for accessing and modifying virtual machine (VM) disk images. You can use this for viewing and editing files inside guests, scripting changes to VMs, monitoring disk used/free statistics, P2V, V2V, performing partial backups, cloning VMs, and much more. libguestfs can access nearly any type of filesystem including: all known types of Linux filesystem (ext2/3/4, XFS, btrfs, etc.), any Windows filesystem (VFAT and NTFS), any Mac OS X and BSD filesystems, LVM2 volumes, MBR and GPT disk partitions, raw disks, qcow2, CD and DVD ISO images, SD cards, and dozens more. libguestfs doesn't need root permissions.
OpenERP is a complete business application suite. It covers CRM, accounting (analytic and financial), production management (MRP), stock management, sales and purchases management, task automation, marketing campaigns, help desk, POS, and more. Technical features include a distributed server, flexible workflows, an object database, a dynamic GUI, an XML-RPC interface, and customizable reports.
Dolibarr is a simple Web application with ERP and CRM capabilities. It is designed for small and medium companies, freelancers or foundations, and can be used to deal with all things you require to manage your activities, such as management of products, stocks, commercial proposals, invoices, orders, members of a foundation, and mailings. A single executable that installs the server and database is available for people with no technical knowledge.