One of the interesting things I wanted to do is to follow who is quating @yesha.
So here is a simple trick.
1. Goto search.twitter.com.
2. Search @your name (for example @yesha or #sometag or anytying.).
3. On the side there is an RSS logo.
4. Click on it and move it to your favoriate RSS reader.
The result is that you have an RSS on this search. In RSS you will always follow this search for twitts -- never missing anything.
Now I will be able to follow how many people actually re-twit this.