So perhaps you've tweeted a time or two, asked people to follow your page on Facebook and LinkedIn, and thought about getting Yelped.
Know where your target audience is engaging: Don't waste time chasing after customers where they're not; find the networks where they already are. Look out for specific niche sites that focus on your industry. E.g: LinkedIn is a good choice for legal or financial service provider.
For all topics in the field of Web design, Video Production & Social Media.