Speaking on a panel in London for the National Endowment for Science Technology and the Arts, Twitter co-founder Biz Stone said a premium Twitter service offering verified streams and an analytics package will be available by year-end, paidContent reported.

Stone said:

This takes advantage of some of the commercial use of Twitter we’ve seen from businesses like airlines and big box stores…We want to present to them a layer of features that allows them to become better at Twitter, show them some of the analytics.

On the subject of mobile use of Twitter, Stone said, as reported by paidContent:

When we look at where we can grow, we look to the more than 4 billion active mobile phone accounts in the world, as opposed to the 1.65 million active Web accounts.

And on newspapers:

As we begin to add things such as the ability to geo-tag an individual tweet and recognize which users have higher reputations than others, that will feed into the culture of news organizations.