Twitter, a popular micro-blogging site, is now looking into ways to generate profits by allowing advertising.

Twitter recently changed their terms of service in order to open the door to potential advertising opportunities. The founder of Twitter, Biz Stone, said they’d like to keep their options open in regards to advertising, as they’ve said many times before.

Twitter is mindful of the potential annoyance advertisements may cause their steadily growing user base. However, with an ever-growing user base currently exceeding 45 million people, it is difficult to resist the opportunity to generate profit via advertising.

Twitter advertisers may also face some potential problems. Twitter content may create branding issues for advertisers as they cannot choose what content appears on Twitter. Being a micro-blogging site, users have the ability to post false, offensive, and poor quality statements that can affect their positive image.

Twitter’s new terms may have made “targeted advertising” possible, but they have not deployed any of these ads to their users.

For more information check out what Twitter has to say on their Blog.