Deciding where to focus your social media energy can be a confusing process, as time is short and resources are limited. It's easy to get distracted by the buzz and articles touting the next big thing that brands "must do." As with any marketing channel, though, the more thought and strategy you put into your implementation plans, the greater your chance of success. You can avoid being overwhelmed by stepping back and starting with your own business objectives, product offerings, and target consumers.
Hi, I don’t want to tell a lot, you can watch all detail at https://moz.com/beginners-guide-to-social-media/best-social-networks!
I am in the same situation. I think it depends what are you selling /doing. I focus on facebook at the moment, probably I add google+ and pintrest. Who are your customers? I also do offline marketing.
Doesn't it depend on what you are selling? I think that selling offline gives you a good feel who your customers are. Using all social media channels is too much for me, I must produce too.
You need to understand your audience, know how to reach them, and elicit an action. Facebook, Twitter, etc. are used for this every day.
I find that offline sales are pretty good to know the audience. you chat, see the people, you get a feel for them.