The RFU relived England's rugby triumph of 10 years ago, moment by moment, in a live tweet stream complete with highlights - and that kick.
Celebrities who use social media to tell fans what they are doing can not expect to have a private life, according to Daniel Radcliffe.
The official Twitter account of the Prime Minister has been following the exploits of a high-class escort agency, it has emerged.
Police forces are among groups in the UK and Ireland now able to highlight critical information to their Twitter followers by marking an important tweet as an alert - a potentially "life-saving" development in social media, officials said.
When they want information to come to public attention quickly they can send a tweet to their Twitter followers - marked as an alert - which highlights the tweet with an orange bell for added visibility.
As well as the UK's 47 police forces, others signed up include the Environment Agency, An Garda Siochana, the London Fire Brigade, the Mayor of London's office, the Foreign Office and the Child Exploitation and Online Protection Centre.
Twitter users who sign up for an account's Twitter alerts will receive a notification directly to their phone via SMS. Users of Twitter for iPhone or Twitter for Android will also receive a push notification direct to their mobile.
Twitter shares fell 4.6% on the day after going on sale for the first time. The stocks traded at 70% above their IPO price, avoiding the flop experienced by its social media rival Facebook last May.
Facebook shares slumped dramatically in the first few weeks after their stock exchange debut.
Shares in Twitter went on sale Thursday and almost doubled in value from its opening price offer of $26 (£16.26).
Many tweeters have noticed that their posts are helping the social networking site increase in value, so TIME magazine has created a calculator that works out how much Twitter 'owes' you.
Share prices in the company have rocketed above the $50 mark meaning Twitter's value is over $24 billion (nearly £15bn).
ITV News has tweeted 60,599 times which, according to the calculator, means $279,128 (£173,651) is 'owed' to us.
However, popstar Justin Bieber - who was recently overtaken by Katy Perry in Twitter followers - is 'owed' a staggering $20,923,841 (over £13m) by the company.
Shares in Twitter went on sale today and almost doubled in value from its opening price offer of $26. The social networking site has never turned a profit, despite being worth $19 billion tonight.
Trading on the New York Stock Exchange under the symbol "TWTR", shares opened at $45.10 (£28.11), 73% above their IPO.
ITV News' Business Editor Laura Kuenssberg reports on Twitter's initial success:
So is Twitter really worth 19 billion pounds? Shares closed at nearly 45 dollars
Twitter Inc has closed at $44.90 per share on the first day of trading on the New York stock market, showing an increase of 73% on the day, but below the opening price of $45.10.
Twitter can help generate an additional £16.06 ($25.62) per tweet in revenue for businesses, according to online marketing data company SumAll, as the social media site made its successful debut on the New York stock market today.
Here are some key figures from the analysis:
- A single business tweet on average generates an additional £16.06 ($25.62) in revenue, compared to not tweeting at all
- Overall, successfully integrating Twitter into digital marketing efforts increases total revenue by 1-2%
- Comparatively, however, it found that Instagram followers are worth 10 times more than on Twitter
Consolidated volume on Twitter shares have hit five million after only 30 minutes of trading, according to Reuters, as the social media company launched on the New York stock market.
Shares for the popular micro-blogging site soared as much as 92% but have stabilised around the $45 mark.
Twitter has made a "stunning" debut on the New York Stock Exchange, said a ETX Capital market strategist, as shares opened at $45.10. It meant that just seven years after starting up, the micro-blogging site was worth $31 billion. Ishaq Siddiqi added:
Although we have seen a staggering entry by Twitter today, unless management can continue to reassure the market that this company's growth profile looks as phenomenal as they claim, we could see the stock drift lower.
It's all about turning those Tweets into dollars now.
Twitter's major investors are not selling IPOs, but the stakes they are holding on to are for some worth more than $2 billion.
Here are Twitter's biggest investors:
- Evan Williams: Twitter co-founder and director. CEO until 2010 - $2.6 billion
- Peter Fenton: Board member - $1.5 billion
- Jack Dorsey: Co-founder and chairman - $1.08 billion
- Richard Costolo: Twitter's current CEO - $349 million