19. The method in claim 1 additionally comprising the following steps: providing a fourth resource, said fourth resource comprising a first customization submission mechanism; receiving a first customization submission via said fourth resource; and causing display of first custom content when a first URL is accessed, said step of causing display of first custom content being performed at least in part according to said first customization submission and being performed by way of either (i) a first toolbar or (ii) a first set of embeddable information.
19. The method in claim 1 additionally comprising the following steps: providing a fourth resource, said fourth resource comprising a first customization submission mechanism; receiving a first customization submission via said fourth resource; and causing display of first custom content when a first URL is accessed, said step of causing display of first custom content being performed at least in part according to said first customization submission and being performed by way of either (i) a first toolbar or (ii) a first set of embeddable information. 22. The method in claim 19 wherein said first custom content comprises a first newsfeed or a first in-toolbar submission mechanism.