Looking forward is always fun, and some of the SEO predictions for 2011 circulating are fantastic and I love them.
Some lean heavily towards Social Media optimization since Google and Bing have confirmed that links shared via Twitter or Facebook are considered as a signal of quality and do affect the rankings, and how much may depend on the social authority of a user.
Social authority is probably defined or calculated by the number and quality of people you are following and the social status of your followers; and I’ll also guess that the number of re-Tweets could very well contribute to one’s social authority.
This is a great example of why no-follow links are important. 😉