You already know that twitter posts have the shortest lifespan of any social media; then Facebook at an average of about 3 hours on a news feed. Here is an interesting and relevant case for blogging. I would add videos, too. The content from both of these marketing strategies can be out there for months, even years - in perpetuity, in fact. What do you think?
Did you know that American Internet users spend more time on Facebook than any other site? Not only is it the site with the second-largest U.S. audience, just behind Google, but it far surpasses every other site in the top 10 of most popular websites, according to data from Nielsen, with the average user spending more than 7 hours and 45 minutes each month on the site.