There are many services that business owners can use. SEO, SMO, and PPC are the most popular. These services are excellent and can produce results on a large-scale for businesses. They focus on Lead Generation different areas of the internet, such as search engines and social networks.
Any combination of any two or three services can be as effective as the other. Personally, I would recommend using PPC (payperclick) and SMO (social media optimization). SMO is more important than SEO at the moment. PPC advertising is also the best option as it can be placed in certain search categories on search engines.