How to Trace ip address of remote computer

Most of you may be curious to know how to trace the IP address of a remote computer or to find the IP address of the person with whom you are chatting in Yahoo messenger or Gtalk or msn.In this post I will tell you How to trace ip address of a remote computer,Well i had been asked this question for a long period and many of users have requested me make a post on How to trace ip address on a