The Web changes rapidly and has
the potential to serve as a conduit for
tremendous computing power from
almost anywhere. We discussed this
vision of the Web as a ubiquitous computer
in the September 2009 issue of
this magazine.1 As depicted in Figure 1,
the Web is evolving from an interconnection
of static information sources
to a programmable interconnection of
static and dynamic information, people,
communities, things, and—eventually—
planets. This evolution is a testament
to the amount of research focus
the Web has received over the past two
decades and will continue to receive.