I love Marketing. Any kind really. Advertising, strategy, social media, guerrilla, viral, you name it I like it and have either experimented in it or actually worked on it. I figure I would talk a little about what has worked for me as well as my general philosophy on marketing itself.
When I take a look at Marketing I really like to see how I can dive into the consumers mind. I take a look at the typical consumer (I know, research!) to see how they think and feel. Sometimes this is already done for me but most times this will include people watching in heavily crowded areas (This is a very necessary skill in Marketing in my opinion).
After I get a feel for who I am aiming at (I never take more than a few hours as time is money), I begin to formulate the channels that will be used. I have experience in a variety of different Marketing backgrounds so my campaigns tend to include a variety of ideas (and I personally prefer ideas that are considered Guerrilla in nature).
Best advice is to go with what you are comfortable with and what fits with your demographic. If you do not understand Social Media, do not go there. You will lose out on business but by not executing a social media campaign well you will be exiling those potential clients for quite some time.
Need help? Let me know in the comments what specific advice you need and I will be more than happy to help you out.