38. One or more non-transitory computer-readable media storing instructions which, when executed by one or more processors, cause the one or more processors to perform a method comprising steps of: providing a computer-based service over a network to a set of users, wherein a first user, a second user and a third user belong to the set of users; receiving, by the computer-based service from the first user, a first expression of interest in being notified about interactions of the third user; receiving, by the computer-based service from the second user, a second expression of interest in being notified about interactions of the third user; receiving, by the computer-based service an indication of a particular interaction of the third user; after receiving the first expression of interest, receiving the second expression of interest, and receiving the indication, the computer-based service performing the steps of: based, at least in part, on the first expression of interest, sending first information about the particular interaction to the first user; based, at least in part, on the second expression of interest, sending the first information about the particular interaction to the second user; and wherein the first information includes one or more links that provide access to one or more views that are associated with the particular interaction; receiving, by the computer-based service from the first user, a first comment entered in a first text entry interface, wherein the first text entry interface is related to the first information; and in response to receiving the first comment, the computer-based service sending the first comment to the second user, based, at least in part, on the second expression of interest, to cause display of the first comment, in relation to the first information, to the second user.
38. One or more non-transitory computer-readable media storing instructions which, when executed by one or more processors, cause the one or more processors to perform a method comprising steps of: providing a computer-based service over a network to a set of users, wherein a first user, a second user and a third user belong to the set of users; receiving, by the computer-based service from the first user, a first expression of interest in being notified about interactions of the third user; receiving, by the computer-based service from the second user, a second expression of interest in being notified about interactions of the third user; receiving, by the computer-based service an indication of a particular interaction of the third user; after receiving the first expression of interest, receiving the second expression of interest, and receiving the indication, the computer-based service performing the steps of: based, at least in part, on the first expression of interest, sending first information about the particular interaction to the first user; based, at least in part, on the second expression of interest, sending the first information about the particular interaction to the second user; and wherein the first information includes one or more links that provide access to one or more views that are associated with the particular interaction; receiving, by the computer-based service from the first user, a first comment entered in a first text entry interface, wherein the first text entry interface is related to the first information; and in response to receiving the first comment, the computer-based service sending the first comment to the second user, based, at least in part, on the second expression of interest, to cause display of the first comment, in relation to the first information, to the second user. 41. The one or more non-transitory computer-readable media of claim 38 wherein: the particular interaction corresponds to input of a text, by the third user, into a text entry interface that is related to a given view that is shared, at least in part, among the first, second and third users; the method further comprises enabling the third user to control access to the given view; the method further comprises maintaining, at least a portion of content of the given view by the computer-based service; the method further comprises causing said text to be shared with the first user and the second user; and a given link from the one or more links provides access to said given view.