What will be the future impact of barcodes on society?

The same could be said of other technology developments from electronic databases (including the Internet) to logistical functions such as barcodes (or in the near future RFID). Many librarians provide virtual reference services (via web-based chat, instant messaging, text messaging, and e-mail), work in digitalization initiatives for works in the public domain, teach technology classes to their users, and work on the development of information architectures for improving access and search functionality. These examples illustrate some of the ways in which librarians are using technology to fulfill and expand upon their historical roles.