To Grow, Twitter Looks Outside Its Own Walls

To do that, Twitter is counting on millions of websites to link to the service and encouraging legions of independent developers to find creative new uses for its platform, driving up activity and the number of advertisements that Twitter users see.

Joe Budzienski, co-founder of Gozaik, is among the developers trying to innovate on top of Twitter’s core service.

His start-up has developed a system that scans Twitter’s half-billion messages a day for job listings posted by employers, indexes them and makes them easy for job seekers to search. It also builds profiles of Twitter users, based on publicly available information, that employers can look at to find candidates.

According to Gozaik’s analysis, 15 jobs are listed on Twitter every minute — roughly 150,000 a week. “One thing that is constant chatter on Twitter is jobs," Mr. Budzienski said.

But matching those ads to potential employees is a challenge amid the cacophony that is the Twitter stream.

So besides the search engine on its own site, Gozaik is developing an advertising tool that will let employers send job-related messages to specific users on Twitter who match their profile of an ideal candidate.

The system, which is still in testing, delivers the ads through Twitter’s existing real-time bidding platform. If it works, it could lead to more job ads on Twitter and help the company tap into the robust market for employer services that has made LinkedIn’s career-oriented social network so profitable.

“We believe that one thing we can bring to Twitter is an entire new ecosystem, an entire new source of revenue,” said Mr. Budzienski, adding that his company’s experimentation has been approved by Twitter, which is allowing Gozaik to have free access to all users’ tweets.

Other start-ups, like Tame and Nuzzel, are trying to improve on the shortcomings of Twitter’s design, which presents messages in reverse chronological order, regardless of significance.

Tame, a German company founded with financial support from the national government, has built an alternative interface. Its tool, which costs 5 euros a month, analyzes a user’s feed and sorts posts into three columns — links, topics and people — based primarily on how frequently they are mentioned.

If, for example, lots of people are discussing the latest revelations of spying by the National Security Agency, those posts would bubble to the top. Users can also choose to examine their pool of tweets over one to 24 hours, offering a quick way to catch up on the top messages over that time.

“We believe something is important if lots of people talk about it,” said Torsten Mueller, Tame’s co-founder and chief marketing officer, who is temporarily working in an incubator space in the same building as Twitter’s headquarters in San Francisco. “We offer you this instant analysis.”

Twitter declined to make executives available for this article.

However, the company generally supports this kind of innovation. It offers a host of free tools for outside sites and developers, including Twitter Cards, which allow publishers, e-commerce sites and mobile applications to extend a 140-character tweet by adding photos, previews of articles or links to mobile apps.

The feature is widely expected to be the basis for future Twitter services, like video advertising or a way to buy a product directly from a tweet without leaving the site.

Beyond developers, Twitter wants its messages republished and embedded on as many websites as possible, and a team of employees, led by the vice president for media, Chloe Sladden, work with news media, broadcast outlets and the entertainment industry to integrate Twitter into their activities.

Posts about big news events, like the passenger David Eun’s photograph of the Asiana Airlines plane that crashed in San Francisco in July, often pop up in hundreds, or even thousands, of other places. That builds buzz about Twitter and exposes potential new users to the service.

“They are one of the first technology companies to really approach media in a collaborative form,” said Ryan Osborn, vice president for digital innovations and social media at NBC News. “We’re at a fascinating time in media where companies telling stories realize all these things are coming together, so there is a symbiotic relationship.”

In its prospectus for investors, Twitter said that it did not make money directly from such deals, but that increased use of its platform allowed it to show more ads.