Blogging Can Be a Detriment to Writing

They say blogging is one of the best ways to get your name known and to collect new followers. What I'm finding, to my dismay, is that blogging and all the other social networking required of authors these days, Twitter, Facebook, following other bloggers, etc., keeps me from doing what is most important--writing. How do successful authors find time to do all this networking and still write quality books? Of course, one way would be to hire someone to do it all for you. But how many of us can afford that? I'm betting not many. The question is what to do about it. I hope someone out there as a good answer and will share it with us.