Above: Keyword demand data from BrightEdge's free Community EditionImage Credit: BrightEdgeMarketers are getting new tools to assess how well their content is doing. Earlier this week, for instance, content marketing platform Uberflip released its Content Score, a single figure that summarizes how effective a piece of content is. Today, SEO platform provider BrightEdge is offering free access to its extensive data — and its resulting recommendations — about content marketing performance.