Here’s a good history of SEO since 1999, which is valuable to understand how things have changed over the last 10 years. Change is a constant with the Internet and SEO…what “worked” yesterday may not “work” today. Thus, focus on passionate, relevant, and niche content as a way to ground your SEO efforts on a solid foundation. My opinion: relevant, niche content will remain king for SEO.
According to comScore, Twitter gained the most visitor traction in March 2009 (9,313,000 unique visitors), a 131% growth over February 2009 (4,033,000 unique visitors).
Social media coolness:
Here’s a nifty resource on topics related to setting up Key Performance Indicators for your webiste. KPIs allow you to measure the success and effectiveness of your website.
Mashable has a Social Media Hub series and has compiled a list of the social media scene in New York City.