WonderCon 2010 Preview Dan Koelsch, March 31, 2010October 18, 2011 Most people know about Comic-Con International’s yearly convention in San Diego (soon to be Anaheim?), but what you may not know is that the organization has more than one event every year. WonderCon is held annually in San Francisco, and the 2010 convention is this weekend, April 2-4. Find out…