For the first time since its inception in 2006, the social networking service Twitter is running advertisements. What do you think?
"This is terrible! Now Twitter will be overrun with all kinds of useless, annoying messages."
Nick McDonald • Roll Thread Operator
"I was wary at first, but Sabra hummus really is offering a great deal to anyone who searches the #IranProtest hashtag."
Frank Thompson • Autism Aid
"It's just as well to have something flashy to catch your eye while you're slogging your way through one of the posts."
Megan Foley • Inquiry Response Coordinator