In short, yes. How Social Media Marketing is used however is different for each business.
If you have a business or thinking about setting up a business then this post will not only help you decide how social media marketing might be able to help you, it will have you thinking about what marketing strategies in general you could be focusing on in your business.
Like your logo it is important to keep your image the same across all profiles so you are easily recognisable. Familiarity builds trust and so you need to make your customers feel comfortable when they meet you, not have them thinking you have something to hide.