How to find a last name of a re-married ex-sister in law?

Where to begin, I need to contact her pretty quickly! She married for the 3 time about 1 year ago.How to find a last name of a re-married ex-sister in law?
I'm a geezer who discovered facebook.com a month ago. You would be amazed at how many people use it. If your brother can remember where she went to high school and when she graduated, you can search FB for that school and class. If she is there, you can send her a message. If not, you can send messages to everyone there, 5 a day, asking if anyone knows her. That may not be quick enough.





The closer she is to being 25, the better your chance of finding her there.





Otherwise, ask all of your brother's friends; maybe someone knows. Almost all marriage data on the web is for dead people. There is virtually no marriage data about living people, to protect people's privacy.





A long shot - if your brother remembers his in-laws, and one of them died after the ex sister-in-law remarried, and you can find the obituary, it might mention her as one of the survivors. It would have to be a parent or sibling, not a cousin, aunt or uncle.How to find a last name of a re-married ex-sister in law?
you can always google it and if she has a facebook, myspace it will popout search in images though