links for 2011-08-04

• Ashton Kutcher Or Kevin Rose, Whose Tweets Are Worth More ...
  Kutcher’s link resulted in 5,888 signups, more than Rose’s 4,356 (but not much more). But Rose’s links resulted in more orders and higher revenues. More of Rose’s followers passed the link along, and they also ordered more. On the first day of the promotion, Kutcher’s followers placed 45 orders, compared to 30 for Rose’s followers. But daily orders from Kutcher’s followers peaked at 75, whereas Rose’s peaked at 158 a week later
  (tags: twitter)