"2. Virtualization - Using virtual machines (VMs), reduces costs in hardware, power, cooling, and break/fix issues related to hardware. Pound for pound, virtualization shows the greatest savings of any other technological change you can make to your infrastructure. The big players in this field: VMware, Citrix, Sun, and Microsoft.
"3. Open Source Applications - Office Suites, Accounting programs, High-end Graphics programs, and much more are available as either free open source or open source format. (Not all open source programs are free but all include the program's source code). These days you have a choice and oftentimes the choice is a free, well-maintained, and Microsoft-compatible application that offers freedom from licensing prison. The most notable among these is OpenOffice.org the world-class Office Suite that compares and competes favorably with Microsoft Office."
