1. A method comprising: generating a search list associated with a first user, wherein said search list comprises an identification of one or more sites pertaining to a given topic; managing said search list in accordance with (i) one or more instructions provided by said first user, and (ii) one or more access control policies associated with one or more additional users, wherein said managing comprises generating a suggestion for inclusion of one or more additional sites to the search list based on (a) sites included in one or more search lists, associated with the one or more additional users, that share a given level of commonality with the search list associated with the first user, and (b) sites that share a given level of commonality with one or more items of content in the one or more sites of the search list associated with the first user; and sharing said search list associated with said first user with the one or more additional users based on the one or more access control policies associated with the one or more additional users; wherein said generating, said managing, and said sharing are carried out by at least one computing device.