Once you have a basic idea of what you want your unique profile to be, the next step is to decide which social media tool you wish to use to market yourself. It is best to use only one networking site at a time, as having an on-line presence is something that needs to be continuously updated and kept current in-order to be effective. Your goal should be to keep your online presence current and interesting. As you will find out, maintaining a positive on-line presence does take time. So set realistic expectations for yourself and focus your energy.