Brightkite aggregates location content for businesses, fun — Location may be the next holy grail for social networking, and plenty of startups are already chasing it. Brightkite, a location-based social network focused on meeting friends and making new ones, has just introduced a new way to show off what everyone is doing in a particular location. Businesses, meet location-based social networks.Read More...... [Tags: aggregates, holy grail, meeting friends, social networking, social networks]