Last Saturday I went to the London/SE chapter of the RNA. The talk was on Social Media by Talli Roland. Here are her main points.
You should be on the sites where your readers are. So, if they are on FB, be there. If they are on LinkedIn, then be there.
Readers can expect you to be there 24/7. Build a core loyal readership. Join forums. You can find different readers in topic groups eg if you write a romance that also has knitting groups in, then find a FB group about knitting.
Don't do too much promo on your profile page, do it on your author page.
You can boost your page. When you do, choose friends and friends of friends. It costs £10. You can see how many see and share your post. And you can get 3000 per click.
When it comes to choosing friends, look at 'mutual friends'. If it's low, then don't friend them. Be positive.
On your author page, you can click on the icon at the top of the page called 'shop now' and you can put a link to your books on Amazon etc. Or you can put a link to your newsletter - that was something I added to the talk.
When you get a certain no of followers, you can't change your name. And on your profile page you have to have your real name or FB might check up on you.
Make your followers feel special and your posts useful.
Find content that relates to your book and tweet. You can put on there the first line and last line of chapters. Post pictures of the locations in your book (made a mental note to do that in future). Take photos of where it's set.
Still good to do.
For readers - have photos, keep it short and turn off the verifications.
I shall write part 2 on Sunday when it goes into Amazon and other sites that are useful.