By: Erika StevensTecmark Inc.Live outdoor music is one of the many perks of summertime. I have been to other festivals in the past but this year I traveled to Chicago for my first Lollapalooza. Before we even arrived at Grant Park the first day I was anticipating all of the tweeting, foursquaring and facebooking I was going to participate in to connect with other festival goers and possibly earn rewards (in this case free stuff!). On Foursquare in particular there were giveaways....