1. Marissa Mayer Dancing
Yahoo's new CEO broke it down in a 2011 campaign video for Ed Lee, mayor of San Francisco.
[More from Mashable: Internet Flowchart Explains Why You Never Get Anything Done [COMIC]]
This week we found another great collection of GIFs, including some that will make you laugh and others that will make you think.
[More from Mashable: Alleged Killer Effortlessly Bought 6,000 Rounds of Ammo Online [VIDEO]]
We have the usual mix of adorable animals, in addition to new Yahoo CEO Marissa Mayer showing off her dance moves, Obama licking a fake ice cream cone, underwater vortex rings and light passing through smoke.
Which GIF in the gallery gets your pick for best of the week? Let us know your opinion in the comments below.
This story originally published on Mashable here.