1. Marissa Mayer Dancing
Yahoo's new CEO broke it down in a 2011 campaign video for Ed Lee, mayor of San Francisco.
This week we found another great collection of GIFs, including some that will make you laugh and others that will make you think.
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.
SEE ALSO: Top 10 GIFs of the Week, Ending July 14
Which GIF in the gallery gets your pick for best of the week? Let us know your opinion in the comments below.