About a year ago, I concluded Twitter was a poor use of my time compared to writing on my blog. I still use Twitter but it’s mainly for adding pointers to my blog posts and only occasionally other items that aren’t worthy of a blog post. In conversations at conferences I have sometimes referred to Twitter having, what I have called, ‘a short link half-life’.
Today I came across an article that shares some useful analysis of how long people pay attention to links on bit.ly across the various social networks. Coincidently, it talks about the half-life of links. It turns out the mean half life of a link on Twitter is 2.8 hours, on Facebook 3.2 hours and via ‘direct’ sources (like email or IM clients) 3.4 hours.