So: What works?

Not Facebook or Twitter.

The crux of the research suggests that brands are wasting their time, effort, and money on Facebook and Twitter to diminishing returns. A study conducted by the firm from earlier this year found that posts from top brands on Twitter and Facebook reach just 2% of their followers. Engagement is even more measly: A mere 0.07% of followers actually interact with those posts.

“Stop making Facebook the center of your relationship marketing efforts,” writes Nate Elliott, vice president and principal analyst at Forrester. Facebook has been in the process of tapering off its free-traffic firehose since January, as part of its promoted content push. Unpaid posts are out, paid is in, which puts anyone who relies on the social network for reach in a difficult position.

“It’s clear that Facebook and Twitter don’t offer the relationships that marketing leaders crave,” Elliott continues. “Yet most brands still use these sites as the centerpiece of their social efforts—thereby wasting significant financial, technological, and human resources on social networks that don’t deliver value.”

“It’s time for marketers to start building social relationship strategies around sites that can deliver value,” he adds.