Twitter&#x27;s problem is not really revenue; the ads and other sources are working (they&#x27;ll probably announce over $2 billion in 2015 revenue). Their problem is that Facebook has trained Wall Street to look at Monthly Active Users as a core metric and Twitter&#x27;s user growth and retention doesn&#x27;t match up well compared to FB.<p>Twitter execs have been trying to underscore their &quot;logged-out users&quot;, as in views on embedded tweets and other pageviews, and are adding ads in those places.