Here is part 7 of the series I will post over the next few months based on chapters from my new book, A Survival Guide to Social Media and Web 2.0 Optimization.
The book is meant to be a guide to building an optimized foundation in social Web for beginners and advanced users alike.
Chapter 7 of the book is about social bookmarking and crowdsourcing using news aggregators, enabling users to save and share their favorite Websites and determine the popularity of a news story, blog entry, or Website through various voting and rating systems.