While online advertising growth continues, there are significant benefits of scale in advertising platform economics, in capital costs for search index build-out, and in research and development, making this a time of industry consolidation and convergence.

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Wells Fargo's index of Build America Bonds shows yields since Nov. 9 hovering above 6% for the first time since August.

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Google is using its vast network of web data on prices to build a Google Price Index, the Financial Times newspaper reports.

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Alternatively, target-date funds should begin to rely more heavily on ETFs and index funds to build their models.

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There, she helped build the company's search index and page ranking group.

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The third option is to use niche index funds or ETFs to build a publicly traded portfolio weighted to track the total economy, rather than just the public stock market.

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Facebook is testing whether to follow Twitter's lead and allow users to click on a hashtag to pull up all posts about similar topics or events so it can quickly index conversations around trending topics and build those conversations up, giving users more reason to stay logged in and see more ads.

WSJ: Facebook Working on Incorporating the Hashtag