ITIL is an acronym for Information Technology Infrastructure Library. ITIL are a series of books and training manuals that outline and explain the practices that are the most beneficial to IT services (usually manager focused). Its current iteration is version 3 and is becoming one of the most popular tools for IT Service Management.
Now that I have defined what ITIL means, why should you care what it actually is? Because ITIL WILL reduce the total cost of ownership of all IT services in addition to increasing overall business satisfaction with the IT department and increase the availability of all IT services. ITIL = GOOD FOR THE BUSINESS. To put is short, implementing ITIL in your IT organization helps to increase your job security. There is a great amount of information in ITIL online. Here are some links for those wanting more info on ITIL and how to get certified: