26. The device of claim 25 , where the one or more instructions to provide the list further include: one or more instructions to provide the list via a toolbar of a browser application associated with the client device.
27. The device of claim 26 , where the one or more instructions to provide the list of available ones of the plurality of custom content groups further include: one or more instructions to receive a data feed that includes the list, and one or more instructions to provide, via the toolbar, the data feed.