ou dados pessoais que nunca serão partilhados...
Twitter improves service, base; next, revenue: Advertising is among the most obvious sources of revenue for Twitter, although it risks alienating users by bombarding them with sales pitches. Aware of the danger, executives talk about a more consumer-friendly strategy of users voluntarily signing up for alerts about new products that they're interested in, or discounts. [...]
Another idea is to charge companies for corporate accounts that offer extra tools to connect with customers and to monitor what people are saying about products, the good and the bad. Indeed, Ross said, Twitter might be more valuable to companies as a place to listen, rather than talk.
Facebook aims to market its user data bank to businesses: Facebook intends to capitalise on the wealth of information it has about its users by offering its 150 million-strong customer base to corporations as a market research tool. The appearance, later this year, of corporate polls targeted at certain parts of the Facebook audience because of the information they have posted on their pages, is likely to infuriate privacy campaigners.