You want to be where your clients are and that is online. Log into forums that focus on your business, i.e., if you sell cars, go onto car forums; if you sell wigs, go onto forums that discuss thinning hair; if you sell beer, go onto beer/wine forums. Start by "listening in", answering questions, and offering advice. Never say "stop by my store or office and I will take care of you." People don't like it when you are pushy. They are looking for good advice for free. Set yourself up as the expert. You can list your website as part of your signature in case they want to find you. After a few visits to the forum, people will start to recognize your name and say "Hey, this person really knows his/her stuff. I am going to contact them."
Don't try to implement every social media site at once. You can get a lot out of Facebook, LinkedIn, Twitter & YouTube, but if you Phone Number List try to be good at all of them all at once, you will be overwhelmed and either quit or not do a good job at any of them. Seek the advice of someone you know that is particularly good at one of the above. They will be more than happy to tell you how they use the tool to increase sales...or as an alternative, local libraries and online webinars have trainings regularly on Social Media.
Make sure you have a plan. Social Media is serious marketing. The ROI is very high. Don't just "try this" and "try that." If you are not sure where to start, again, seek out someone who is doing it well and ask for some advice. Social Media Experts are becoming more available as the technology develops. Map out a plan for best results. Don't forget to include Mobile Technologies like text message marketing, mobile advertising and mobile landing pages in your plan. Everyone uses their smart phone for everything. They are not content to wait until they get home on their computer.