YouTubes 10 Most-Shared Ads in August

1. AMC: Zombie Experiment NYC

Adding zombies to anything is a good first step toward virality. The most-shared ad of the month comes from a guerrilla-style promo for AMC's The Walking Dead.

Click here to view this gallery.

As summer ends, we all wonder what the next viral YouTube sensation will be. Will the song "Call Me Maybe" stand the test of time and continue to make parody waves in the fall?

Probably not, but it certainly has permeated the social advertising sphere in recent months. Also topping August's most-shared ad charts are zombies, flash mobs and emotional tearjerkers.

Now if only we could get an ad featuring a zombie flash mob dancing to "Call Me Maybe."

Thanks to our friends at Unruly for compiling this list.

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