5. The method of claim 1 , where receiving the selection of the one or more custom content groups includes: providing, to the second user, a list of available ones of the plurality of custom content groups, and receiving the selection of the one or more custom content groups from the list.
5. The method of claim 1 , where receiving the selection of the one or more custom content groups includes: providing, to the second user, a list of available ones of the plurality of custom content groups, and receiving the selection of the one or more custom content groups from the list. 6. The method of claim 5 , where the list is provided via a toolbar of a browser application associated with the client device.