If you’re a self-publishing author, you should take a look at Publishing Talk’s website. I love their magazine, Publishing Talk Magazine, which is free to download as a PDF. They have recently released issue 7, and it is packed full of helpful articles and tips. I especially liked Ben Galley’s article, How to Get Started on #SocialMedia, which was so useful.
You can sign up to receive the magazine in your inbox, which I did, so I wouldn’t miss out on the latest issues.
You can find out more here: http://www.publishingtalk.eu/magazine/