Question of No Consequence Raised by Reading Too Many Wedding Blogs

In my movie-viewing experience of weddings, the bride stands on the left (if you are in the audience) and the groom stands on the right. But lately I have been seeing it switched, both in real life and on le blogs. Are there particular reasons or religious traditions for one or the other? Is there any symbolism involved either way? Anyone know more about this than me? I feel like I have read something about every last little piece of the wedding ceremony and what it means or what it used to mean or what have you. But this one I do not know diddlysquat about. 


Be my Google. Enlighten me on this subject.