If you're a keen #OOTD-er (aka, someone who likes to show their 'outfit of the day'), prepare for all of your Tumblr-ing duties to be so much simpler from now on. How? Because the site will ...

Tumblr users may notice a Starbuck cup in place of the period in the logo today: It's an ad. The period is now for sale to advertisers as the Sponsored Tumblr Dot. The ad isn't available everyday, but ...