Facebook's early days were incredible. Companies like Zynga, who were able to take early advantage of the social network's viral potential, grew into multi-million dollar entities over a period of weeks. We were all new; brands and common users alike saw shares and invites as the path to virality, and for a time, it seemed to work. Week after week, the number of active daily users continued to skyrocket, and Facebook quickly became the destination of choice for businesses seeking wider audiences.

That time is over. The market place is crowded with brands pushing their campaigns toward users who have become more selective about what they will share and what they will invite their friends to