As Twitter marks its 10th birthday Monday, it is somewhat of an awkward child -- having become a powerful communication tool but still struggling to win users and reach profitability.
Since making a star-quality entrance a decade ago, Twitter has become a must-have tool for journalists, activists and celebrities but has struggled to show it can expand beyond its devoted "twitterati" to become a mainstream hit.
While Internet lovers might have trouble envisioning life without Twitter, the San Francisco-based company has seen its stock tank, a chief executive leave, and its staff cut.
Twitter's woes include a slump in its stock price to all-time lows this year -- down nearly half from its 2013 stock market debut -- and ongoing losses, even as its revenue grows.
Twitter's base of monthly active users remained stuck at 320 million at the end of 2015. While that is a big accomplishment, Twitter has failed to keep pace with fast-growing rivals and to expand beyond its base.
The troubles have forced Twitter to bring back co-founder Jack Dorsey as chief executive, but that has not stemmed rumors about a possible buyout or merger.
"It's not dead yet," independent analyst Rob Enderle of the Enderle Group said of Twitter.
"Watching all the metrics, you see they are not getting a lot worse but they don't seem to be getting better either."
Some analysts believe Twitter's true value is being demonstrated in the US presidential race, especially by the Republican frontrunner, Donald Trump.
"Eight weeks ago I would have said the days of Twitter are over; I don't say that anymore," Global Equities Research analyst Trip Chowdhry told AFP.
- Twitter has 'legs' -
The analyst said Trump has shown how potent Twitter can be for those who embrace it.
"I think that probably the worst for Twitter is over," Chowdhry said. "This platform has legs."
Chowdhry said Indian Prime Minister Narendra Modi also used Twitter effectively to win his campaign and Tesla founder Elon Musk has been shaking up the auto sector with the help of the messaging platform.
Twitter and other social media have been important tools in movements such as the Arab Spring, and in protests in Turkey, where the government has sought to ban it.
An advantage of Twitter is that it lets users "amplify" messages with tweets that echo on the Internet, and assess public sentiment in real-time by getting quick feedback.
Trump has boosted the number of his followers to nearly seven million, and has managed to beat rivals with a campaign largely based around Twitter.
"I am pretty sure most of his followers are not on Twitter, but they know what he is saying on Twitter," analyst Omar Akhtar of the technology research firm Altimeter Group, said of Trump.
"The Twitter effect cannot be ignored. Twitter has a life beyond its platform, the trouble is it doesn't know how to monetize that part."
The research firm eMarketer lowered its revenue estimates for Twitter this month, saying its "monetization" efforts -- the selling of advertising or "promoted tweets" for those who use the platform without logging in -- are falling short.
"Events like the US election and Summer Olympics this year may prove pivotal to the success of this strategy," said eMarketer's Martin Utreras.