10. The method of claim 1 , wherein the first content overlay information further enables the first user device to present a graphical visualization of: a second control that allows the user to indicate a favorable opinion of the relevant advertisement; a third control that, responsive to user selection, causes the first user device to present information relating to the use of the re-publishing control; and a fourth control that, responsive to user selection, causes the first user device to present information relating to the content of the relevant advertisement.
10. The method of claim 1 , wherein the first content overlay information further enables the first user device to present a graphical visualization of: a second control that allows the user to indicate a favorable opinion of the relevant advertisement; a third control that, responsive to user selection, causes the first user device to present information relating to the use of the re-publishing control; and a fourth control that, responsive to user selection, causes the first user device to present information relating to the content of the relevant advertisement. 13. The method of claim 10 , wherein the first content overlay information further enables the first user device to present a graphical visualization of a fifth control that, when selected, allows the user to interact with a user profile for a user of the third-party content site associated with the relevant advertisement.