The person you requested to follow has to approve your request before it shows up on your page.
Followed by is a term usually widely on Twitter in reference to the number of people following some tweep.
At the top right hand corner it tells you how many people you are following and how many people are following you. If you click on those that are following you, they are in order of when they started following you. So, the one at the top is your most recent follower.
It's impossible to know this as he is following so many people.
Yes, you can actually know if someone retweet or mention you in twitter. It is a default feature in twitter and every tweeple (twitter people) can know who followed and mentioned them.
As of March 17,2011 8,202,406 people are following him on twitter
It Depends On If The Person Have A Privacy Lock On Thier Account.. People Who Block They Page So Only The People Who They Are Following And Getting Followed Back Can Communicate. If The Person Account Is Not Locked You Can Send Them A Message And A Tweet.
A brilliant Tweeter who is followed by 3 famous people
I think you can follow someone on Twitter if you have 900 K people already. It should not matter how many people you are following or who is following you.
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.
Facebook is for connecting with friends and family, or maybe even old collegues whom you've lost contact with. It is for showing off your holiday snaps and bragging about getting a promotion. Whereas, Twitter is hardly about connecting with friends, but more about following celebrities and catching up with their lives. As a vivid Twitter user, I am following 100 people, and not one of them I know personally!
Someone that you are following would have "retweeted" the tweet.
You may send a tweet (or @reply) to anyone on Twitter; you certainly don't have to be following them! Following a Twitter user just means that all their tweets appear in the "timeline" on the home page of Twitter when you log in. (Along with your tweets and the tweets of anyone else you may be following.) To follow someone, go to their Twitter page and click the "follow" button. Anyway, to send a tweet to any Twitter user, just include an @ sign followed by the username of the user you want to send the tweet to. For example, if you want to send a tweet to the user with the username JohnSmith, include @JohnSmith in you tweet.