This week Rand discusses recent changes that seem to signal the coming of another big shift in how the engines determine results. With the incorporation of social networks into results, increased personalized search, and even Google Buzz, the social graph is clearly becoming a more and more important factor for the engines. What will these changes mean for online marketers and how can you take advantage of them? Watch this week's Whiteboard Friday and find out...

And here, for your browsing pleasure, are some of the resources Rand mentioned in the video...

• Video intro to Google Buzz:

• Royal Pingdom says Twitter now processing more than one billion tweets per month.

• The New York Times analyzes the sharing of articles online.
• Mashable reports Facebook passes 400 million users.
• Search Engine Land looks at Google's social search features.