"Users are most likely to be attracted to simple applications and interfaces, so businesses that are able to entice consumers with new and exciting mobile functionality will be the most successful," he said.

"In general, I would recommend mobile and social and large dating sites. "The dating phase prior to an offline marriage runs up a $23,660 tab.

The average dating site customer spends just $239 a year for online memberships, which more than pays for itself to the tune of $12,803 in cost savings from fewer dates," the report said.

(IAC announced in December that the dating website will be reorganized as a separate business called Match Group, with its own chairman, potentially setting the stage for a spinoff.) "A company like Match, they have the best potential to gain significant market share in terms of the number of subscribers," Anthony said.

If it happens, the move will make it easier to turn Match into a separately traded company, a strategy Diller used before.

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