Here are the submission guidelines for the Journal of Spurious Correlations. This is good to keep handy for at least two reasons. First, if your favorite journal rejects your work because referees report that it is simply about spurious correlations, it's good to have a back-up place to send your manuscript. Or you could go to the JSC first.
But the second reason is a new and handy research tool called Google correlate which expedites data mining. The WSJ offers this wonderful example of a useful application. They show the great fit between three variables that were always suspected of being causally linked: Fed Balance Sheet, How to Get Over a Guy, and Nausea Remedies.
The report does suggest the need for further research.