An interesting website does this thing.Go to http://twitterscore.net/high-scores-by-location (Related links) and click on the Country you want to explore!
The number of specific Twitter users per country or nationality is unknown.
America.
You can search for specific users on Twitter. Then, once you have an account and you are signed in, you can click on the "follow" button on their profile.
http://twitter.com/search/users?q=peter+krause&category=people&source=find_on_twitter
Try to search which your Facebook, Twitter and linkedin friends using the instagram..you can follow them and invite to follow u..
13% of Americans use Twitter.
Yes there is a search box at the top (new Twitter) or at the right hand side (old Twitter)
Yes you are free to chat with other users on Twitter.
You should search for her on Twitter.
with the help of their hands...
Just go to twitter.com or search twitter on a search engine (eg. google or bing) and click on the twitter link.
You can search for a hashtag without using twitter by typing the hashtag on Google.