How are Promoted Tweets performing? Looking at Twitter campaign activity run on its own platform, AdParlor found that for Promoted Tweets in North America, CPM, cost per click (CPC), and cost per engagement (CPE)—which includes clicks, follows, replies and retweets—had risen between January and June 2014.
During that timeframe, average CPM increased from $10.26 to $11.59. However, this metric fluctuated every month, moving up and down several times between January and June 2014, when it showed its second-highest level. Read the rest at eMarketer.