While doing the post-mortem on a Panda, I've been evaluating my Google analytics to see what clues I can find in bounce rates etc.
Looking at the long term - (2005 to date), I've noticed a trend of key metrics declining - for example:
Pages per visit - 3.5 in 2005 is 2.3 now
Bounce rate was 51% in 2005 is 64% now
Avg time on site was 2 mins in 2005 is 1m 30sec now
Is this part of a general trend, that people on the web are viewing fewer pages, have higher bounce rates and less time on site - or is this something specific to my site?
I'd be interested in what other webmasters with data going back that far are seeing.