1. A method comprising: accessing, by a processor, first user profile information associated with a first user, the first user profile information comprising one or more of information indicative of an age or a level of maturity of the first user, a category of interest to the first user, a characteristic determined or inferred based upon one or more actions of the first user, a location associated with the first user, or a name of the first user; based on the accessed first user profile information, automatically customizing a first user interface for the first user by including a first toolbar control in a toolbar of the first user interface that provides access to a first set of pre-designated references to content selected based on the first user profile information, the first toolbar control being selectable from the first user interface without having to first select another toolbar control; accessing, by the processor, second user profile information associated with a second user, the second user profile information comprising one or more of information indicative of an age or a level of maturity of the second user, a category of interest to the second user, a characteristic determined or inferred based upon one or more actions of the second user, a location associated with the second user, or a name of the second user, wherein the second user profile information is different from the first user profile information; and based on the accessed second user profile information, automatically customizing a second user interface for the second user by including a second toolbar control that is not included among the toolbar controls included in the first user interface customized for the first user, wherein the second toolbar control of the second user interface customized for the second user is selectable from second user interface without having to first select another toolbar control and provides access to a second set of pre-designated references to content selected based on the second user profile information.