The Mendocino Coast is home to writer and editor phenomenon, Victoria Mixon. Her website is a storehouse of excellent advice: victoriamixon.com
California Writers Club
Use social media to create a platform for selling books, and give publishers proof of marketability
Basic requirements are broadband Internet access, the ability to use a browser and to manipulate pictures. A free online photo editor can be found at http://pixlr.com/.
Know your target audience. Think deeply about the narrow niche interested in your writing. The unique keywords your audience uses to search for their favorite things become tools to direct them to you and for you to interact with them.
Are you in this niche?
Get your presence out there, with a website and a blog, minimum. Get both for free at http://www.weebly.com along with Weebly’s online editor. Most people can learn to use it in half an hour. The ideas that power the content are what piques the interest of the target audience.
Get them to come back. THIS IS A MUST. Whether selling books or services, the process is the same. Fewer first time visitors will buy a book than a seven-time visitor who’s wowed by the content and ultimately returns to buy the book.
Do outreach to blogs and websites found by using the unique keywords of your target audience. Make brilliant comments and include a link back to your website.
CONTENT IS KING - ABOVE ALL ELSE
For non-fiction books, one marketing strategy is to position yourself as an expert in a particular area. The key is to be seen as a trusted resource for information relevant to your target reader. In your webpages and blog posts, match the contents of your book with the keywords your audience searches for.
As a novel writer, the genres, themes, and subjects of your book become the content of dynamic web pages and frequent blog posts that contain the unique keywords of your audience.
The New Rules of Marketing & PR by David Meerman Scott
See these concepts restated by Kimberley Grabas in her post "10 Ways to Defeat Obscurity: Tips for Authors Who Want to Get Noticed" of August 29, 2013