Twitter Ads now available to all U.S. businesses

After only being available to select businesses for about a year, Twitter Ads is now available to almost all U.S. companies that want to use it.

Twitter announces Ads API, first five partners, and a big leap to making more money

Advertising on Twitter just got easier, and Twitter just took a giant leap to making more money.

Twitter extends Trends to reveal breaking news in 100 more cities

Twitter has added localized trends for 100 new cities, improving its capability to show people the buzziest news and hashtags being discussed on the information network in locations around the world.

Twitter ads now unavoidable in iPhone, Android apps

The Twitter mobile experience is getting infinitely noisier today. The information network is in the process of pumping up the volume on the amount of mobile advertising content it shows to users.

Twitter is adding Promoted Tweets, ads that double …

Twitter’s revenue tripled since last year, and its valuation doubled

Twitter is on track for nearly $140 million in revenue for 2011, up from a reported $45 million just last year.

These figures come from eMarketer, a digital intelligence firm that keeps a close eye on ad revenues for companies …