Click on their profile and then on their "following" list on the right hand side of their profile.
yes
It is impossible to send a DM on Twitter to someone who isn't following you. The user has to follow you before you can send them a DM.
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.
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.
It means "Someone I'm Following"
Someone that you are following would have "retweeted" the tweet.
On Twitter, you can invite your msn contacts to join Twitter.
i think so
One can do a quick name search on Google and find their social link including twitter.
Go to their profile and click "block"
There is written up on the right "Find People".
While you can only "direct message" people on Twitter who are following you, you can try to get someone's attention by referring to their user name and adding the @ symbol prior. For example @DavidWallace which is my Twitter user name would show up in my "replies" box in TweetDeck which is what I mostly use to access Twitter.