ICT stands for "Information and Communication Technologies" - essential for the 21st Century Genealogist.
Here's a dictionary definition (so we are all singing from the same songsheet):
Modern information and communication technologies have created a "global village," in which people can communicate with others across the world as if they were living next door. For this reason, ICT is often studied in the context of how modern communication technologies affect society. Source: http://www.techterms.com/definition/ict
Here's a dictionary definition (so we are all singing from the same songsheet):
ICT refers to technologies that provide access to information through telecommunications. It is similar to Information Technology (IT), but focuses primarily on communication technologies. This includes the Internet, wireless networks, cell phones, and other communication mediums.
In the past few decades, information and communication technologies have provided society with a vast array of new communication capabilities. For example, people can communicate in real-timewith others in different countries using technologies such as instant messaging, voice over IP (VoIP), and video-conferencing. Social networking websites like Facebook allow users from all over the world to remain in contact and communicate on a regular basis.

Please take some time to to reflect on your genealogy activities and think how the absence of ICT from your life would have an IMPACT on your practices.