I'm in the "researching" phase of getting my manuscript published while I wait for beta reader reviews to come back, and one thing I keep seeing over and over from agent websites and articles about writing as a career is that an author needs a social media presence. I do not have one of those, and have been avoiding it, hoping that tip just somehow doesn't apply to me. Which is dumb, I know. The world changed; a platform is a big advantage now. I just don't quite know how to go about building one. I was thinking of finally signing up for Twitter, and starting a blog (if for no other reason than to have somewhere an agent can see other samples of my writing). Is that the right way to go with this, or am I still a decade behind the times? What is a good way to start getting a presence out on the internet? The most terrifying thing about this step isn't the stuff I don't know, it's the stuff I don't even know I don't know. For people who have a platform, what did you wish you knew before you got started making it?