^ There is a Celebrity ID forum specifically for that. If you have a question about a specific piece, post a thread there and people can help you identify it.
You can find that forum here:
http://forum.purseblog.com/can-you-i-d/
Generally this thread is for posting pictures and admiring her style. Whether the person can ID the brand of piece of clothing is not necessary to post pics, and often people don't know what the celeb is wearing when they post pics. They are just doing something nice and sharing pics they found. Hope that makes sense! :) Welcome to TPF.