... pages to exchange data with non-Web applications. And the flexibility of group conversation tools allows many configurations for meetings and support for working relationships within and between depart-ments ... help people locate and engage with groups thatbring them personal and professional support, useful ideas and trusted knowl-edge. With keyboards and words as their main tools for communication, ... blacksmith required deep understanding of horses, met-allurgy, and design, combined with hands-on expertise in the use of heat, iron, and tools, a line worker needed only perform the assembly procedures...