July 8 was a scary day for the Twitterverse in the midst of an even scarier month.

It started when United Airlines grounded flights nationwide for nearly two hours, citing "network connectivity" issues. Hours later, the New York Stock Exchange halted trading, blaming technical problems. (It reopened before the market close.)

Where did the freaked-out public turn to make sense of it all? The Wall Street Journal, naturally — which subsequently went down, likely due to heavy traffic. The pseudonymous, Fight Club-channeling finance blog Zero Hedge suffered an outage of its own.

Elsewhere in July, uncertainty and long ATM lines reigned in Greece as the country fell behind on a payment to the International Monetary Fund and banks closed for much of the month, putting daily limits on cash withdrawals. The Shanghai composite index posted both huge drops and the biggest gain in years as the government intervened in an attempt to limit losses.

Meanwhile in Washington, Federal Reserve Board Chair Janet Yellen testified in Congress, and volumes of comment letters on the Department of Labor's fiduciary rule proposal rolled in.

On General Economic Topics

On Millennials

On China and Greece

On The NYSE Outage

When Civilization Burns, Ivan The K Will Be Tweeting From the Ashes

— Check out Best Finance Tweets of the Month: June 2015 on ThinkAdvisor.

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