In January I noted that Facebook was experimenting with ad placements above the ticker. This is obviously prime real estate for the ad - and inversely devalues the ticker's prominence. Over the last week, I have been seeing more and more of this treatment. A couple things to note:
1. Yes, the ad unit is above the ticker.
2. As I have written before - this is much more than an ad - it's a mini Facebook page: friends, likes, comments, shares, etc.
3. When you scroll down the page, something new and interesting happens: the ad drops off the page and the ticker anchors to the top op the browser. It's a slick animation (shown in screenshot two). Ultimately, this could also anchor for the ad unit - which would make the ad unmissable.