"Dell said Thursday night that the company had earned $3 million in
revenue directly through Twitter since 2007, when it started posting
coupons and word of new products on the microblogging site. In the last
six months, Dell Outlet
earned $1 million in sales from customers who came to the site from
Twitter, after taking 18 months to earn its first $1 million. Dell has
also earned another $1 million from people who click from Twitter to
Dell Outlet to Dell.com and make a purchase there."