Once I got online I never looked back. I wouldn't dream of not being here, not blogging, not being active on social media, which is my chosen way to promote myself as a writer and part of the job.
However, finding balance is difficult because of the tempting nature of the beast. One can easily spend every second of free time online, feeling like important marketing is being accomplished as the seductive Internet eats up our precious creativity.
Regarding marketing, I feel that once published, writers need to spend more time writing and improving our craft than talking about our books. Get the word out then back off and write the next book, while still doing enough to maintain a website/blog geared toward your demographic.
Regarding social media, I think it's important to develop an online presence to make connections with other writers, the publishing industry, and with your readers. Online is where the news hits first and where trends are started. Stay in touch with the writing, publishing trends but don't fritter away precious creative time overdosing on social media.
That's the basis of my philosophy about writers and marketing. I don't always follow it. But I believe it. And I keep trying for that elusive balance. Which is why I'm posting less often and commenting less frequently, try to control myself on Twitter, don't do much on Facebook, and why I am assiduously avoiding Pinterest.
Have you found an agreeable balance between writing and marketing?