Here are some good links for you to check out:
- A Framework for Thinking About Author Platform
- What We Leave Behind – The Real Meaning of Your Platform as a Writer
- Do One Thing & Do It Better Than Anyone Else
- Social media marketing explained in 61 words
- Ultimate list of Google Authorship resources
- How to Promote Your Book on Twitter: An Intermediate’s Guide to Tweeting
- Blogging, Social Networking, Answering Emails – Hey, when do I get the time to write?