The adverts will be marked as “promoted” in order to easily distinguish these ads from other tweets. The kind of adverts which appear on each individual’s timeline will be tailored to their likes and dislikes according to the information they give on Twitter.

The micro-blogging website was set up three years ago and now boasts 25 million members worldwide. Until the introduction of promotional tweets, the site was unable to make any money from the social network.

The move will allow advertisers and internet marketing companies to connect to a massive audience worldwide. The strategy of tailoring ads to users’ interests will ensure advertisers target the people who will be most interested in the product advertised.

Previously, advertising on Twitter only appeared in the search results.

As well allowing paid-for ads to appear on user’s tweet streams, in the future Twitter plans to offering advertising space on the main pages of Twitter members. As with the other ads, these will be geared towards the interests of that particular member according to the information they share on the micro-blogging website.

Twitter is currently experimenting with the new advertising system as it attempts to find the right times, and types of ad to display to its users. The paid-for adverts will only be available to view by those members who have installed HootSuite.

Yahoo! and Twitter embark on a new venture

Yahoo! has signed a deal with the popular micro-blogging site Twitter which will see Yahoo! users able to access Twitter via a whole host of Yahoo! products.

It’s not unusual for search engines to partner up with social networking sites such as Twitter. Only last year Google and Microsoft’s Bing signed a deal with Twitter to start indexing their updates on their search pages.

However the Yahoo! deal will go beyond simply indexing Twitter updates. Users of Yahoo! will be able to access their Twitter accounts from the company’s homepage, and from their Yahoo! email account, bridging the gap between social networking and other technology packages more than ever before.

Bosses at Yahoo! say the new venture will enable their customers to access their social networking pages more quickly and effectively by integrating Twitter services into several areas of the Yahoo! brand. Bryan Lamkin, senior vice president, consumer products group, Yahoo! described the new partnership as “simplifying people’s lives by bringing their social worlds — and the world —- together for easy access.”

How the service will work has not yet been revealed, neither is it known how much the deal between Yahoo! and Twitter has cost.