David Masters is a professional blogger and ebook writer. You can find his books on Amazon.
What You Should Know About Using Google Plus for Research
Using Google Hangouts as a Business Tool
Finding Clients on Google Plus
Using Google Plus to Boost Your Search Rankings
Google Plus Updates: What Should You Share?
Google+ Networking: Circles and Communities
How to Set Up Your Google Plus Freelancer Account
Google Plus: Waste of Time, or Vital Tool?
Using Twitter for Freelance Business Research
How to Find Freelance Clients on Twitter
Tracking and Understanding Your Twitter Metrics
How to Grow Your Twitter Following