I put this document together recently when I was involved with a bid recently.
These incredibly useful numbers / quotes etc. were culled from the Marketing Charts website – brilliant site, although I do wonder if the companies involved ‘place’ the reports on it to further their own agenda. That said, the stats are great – in this case, about Social Media.
If you’re interested in which report I got the data from – go to the Marketing Charts website, and search using the exact words from the titles of a particular section: it should bring up the original report. As they say, Enjoy!
Sample from Marketing Charts
You can also download data from this page, e.g.: