Videos that go viral usually have one of two traits: they are funny or they are about sports. So one would conclude after viewing more than 120 clips of global videos whose popularity took off on the Internet. Other common characteristics to these videos, which were compiled and ranked by Advertising Age and Visible Measures, was the fact that many, but not all, were in the English language and most used relatively unknown actors. Another factor most had in common: they were produced by a professional agency. (via MarketingCharts).

Top 10 Viral Ads By Unique Views

1. Blendtec - Will It Blend - In-house: 134.2 million views

2. Evian - Live Young - BETC Euro RSCG: 103.9 million views

3. Old Spice - Responses - Wieden & Kennedy: 57.1 million views

4. Pepsi - Gladiator - AMV BBDO: 46.7 million views

5. Microsoft - Xbox Project Natal - World Famous: 42.7 million views

6. Dove - Evolution - Ogilvy & Mather: 41.1 million views

7. T-Mobile - T-Mobile Dance - Saatchi & Saatchi: 35.5 million views

8. Doritos - Crash the Super Bowl 2010 - Goodby Silverstein & Partners: 34.2 million views

9. Old Spice - Odor Blocker - Wieden & Kennedy: 34 million views

10. DC Shoes - Gymkhana Two - In-house: 32.9 million views