With wedding season in full swing, webcasts of couples saying "I do" are up 250% in just one year. A growing group of tech-savvy couples are incorporating live video streaming of their nuptials online, so friends and family who aren't able to make the event can still watch from afar.

With the average American spending about $529 on each wedding they attend — not to mention what it costs to be in one — watching via the comfort of your own home may not be such a bad idea after all.

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