I have a few local websites that each cover a specific type of event. I want to build a site that combines them all through calendar feeds...I am using wordpress with timely calendar plugin. I am wondering if Google will punish me for duplicate content. The new website would also have original content but a large part of the site would be the calendar event feeds.

Is this going to cause me a problem? I am happy with my other sites and don't want to screw them up with the new one or spend time creating a site that gets blasted by Google.

thanks in advance!