Back in April 2007 I blogged on the rise and fall of the Rootsweb mailing list. With ever increasing social media options Rootsweb's share continues to slide.
Posts which peaked at over 4.1 million in 2002 fell below 3 million in 2004, below 2 million in 2008, and below 1 million in 2011. Total posts in 2012 were 868,552 and posts for the four months ending January 2013 were down 17% year over year.
In April 2007 I wrote that "postings with DNA in the message body, shows healthy growth as interest in this area continues to develop." It turns out 2007 was the peak year even for DNA with 90,135 posts. In 2011 and 2012 there were less than 39,000 DNA posts. As you might expect the share of posts mentioning DNA did increase, from 3.3% in 2006 to 4.5% in 2012.