302 Desktop Grid Computing
as a single order may be split to many Desktop Grid tasks. Finally, the Reg-
istrator module registers the users signed up on the Web 2.0 interface to be
donors in the Desktop Grid server and synchronizes the user database of the
two systems.
13.5.3 Registration and the Payment System
The Web2Grid platform recruits users and donors from the Web 2.0 social
networking platforms (e.g., Facebook or Orkut). Resource donors (or simply
donors) are persons who donate their idle resource capacities (usually CPU
time) to the platform, while users are the entities who want to use the services
provided by the platform (e.g., want to embed watermarks in the pictures of
their albums uploaded to Facebook). Registration for both donors and ...