With this week’s announcement that Yahoo will purchase Tumblr for $1.1 billion, it may be a good time for brands to reevaluate how they can leverage the image-driven platform to reach their targets. If the marriage of the two companies is successful, then it’s likely that Tumblr will have the infrastructure to begin to expand their ad packages which until now have been largely experimental and focused on formats that meld nicely with the social/blogging site’s own aesthetic. For brands that have their eye on millennials — a group with which Tumblr has been highly successful — and that are savvy content builders, now is a great time to explore any new outreach opportunities using Tumblr that may have been back-burnered. And there’s certainly no shortage of opportunities. The latest numbers show that there are over 100 million blogs hosted on the site, generating 89 million new posts daily. Users spend up to an hour and a half per day there and the site is listed by Quantcast as one of the top ten sites in the U.S. Brand success with Tumblr comes from the ability to create visually captivating content, centered around a theme described with short, well-written text….