One reliable source for the number of Twitter users is Twitdir. TwitDir is a Twitter users (some call them twitter'ers) directory.
Twitdir reports the number of Twitter users is well over one million.. As Twitdir is only capable of detecting Twitter users with a public profile, this number is a underestimated as to the total number of Twitter users.
According to a story in TechCrunch entitled, "End Of Speculation: The Real Twitter Usage Numbers." the key measure of Twitter usage is total users, total active users and total messages sent. And according to a source close to the company, these are the current Twitter usage stats:
Total Users: 1+ million
Total Active Users: 200,000 per week
Total Twitter Messages: 3 million/day
SocialMarketingExpert.org states that since Hitwise says web visits to Twitter have increased 8x in the last year, they estimates the number to be 14,590,000 Twitter accounts in total (most of which may well be "inactive")-- but around 3 million active accounts.
According to figures from eMarketer, Twitter receives over 14million visitors a month from the USA and they estimate that Twitter currently has over 6 million users.
Millions. If you visit their website there is a graph of how many people are using it.
Twitter crossed 200 million members in March,2011.
I have been stalked on twitter but most people aren't.
190,000,000 people follow Twitter.
There aren't any statistics to show exactly how many people of a country use Twitter.
As of January 2012, over 300 million people use twitter.
As of March 17,2011 8,202,406 people are following him on twitter
There are many. Find out for yourself by searching for their name on twitter.
This is unknown, try asking the Twitter Developers! :)
As many as you want.
It is impossible to know this since people who don't have an account can also view Twitter.
Many famous people use Twitter. Lil Wayne's Twitter account is @liltunechi
Twitter reached 200 million members in March 2011.
On twitter they have about 500,000 followers but considering how many people are not on twitter and how many people are real fans, I would say about 450,000. Just guessing :)
New York State has the most Twitters users in the USA, according to Twitter data. So how many people in NYS are registered Twitter users?
A lot of people have a Twitter. Four out seven people in the world have a Twitter.
To message people on Twitter, you must have an account.
You can follow 2,000 people.
There is no limit currently to the number of followers a Twitter account can have. There are lots of people on twitter, (like celebrities) that have millions of followers.
Yes, you can see how many people are following a Twitter account. All you have to do is go to the person's profile and look at the "Followers" amount.
infinity to the power of infinity people
over 8,000,000 people
A LOT he has a lot of followers on twitter and there are other people who don't have twitter that like him,
Sometimes, it depends how well your twitter account is protected and how many people search you. ;)