Bewenched - 2:23 am on Nov 27, 2012 (gmt 0)
I used to be plagued by content scrapers on a 12 year old site until I set up Google+ Authorship on all pages last year.
I've set that up as well, not sure if it will help since we're a company and not an individual, but it was worth a shot.
Speaking of G+ we're seeing less than stellar G+ activity. I think we've had 5 or so in 6 months time, but FB likes we get nearly that many a day.