Are keywords necessary for managed placements in Adwords?

[RonSanSolo]

Hi.
I created a campaign in Adwords for the Display Network. For the ad group, I'm using image ads only (all sizes) AND specific URL's for managed placements.

Do I still need to add keywords for this ad group, or are the managed placements URL's sufficient?

If I do add keywords, will Google show my ads on sites other than the ones listed in the managed placements?

Thank you,
Ron

[fahad22]

Its always useful to add keywords since you never know Google's algorithms. Even the Staff as Adwords might be unaware about some of the tactics Google uses. So I would suggest you to be on a safer part and add keywords.

[RonSanSolo]

Thank you, Fahad.
Do you know if I add keywords will Google show the ads on sites other than the ones I specified in managed placements?

[fahad22]

I'm sure it won't but would still suggest you to add keywords since it does not take more than 10 minutes.