A fellow petite, Cynthia, runs the blog http://www.shorty-stories.com/ , you should check it out!
Here are some recent posts on petite's. At the site she celebrate's petite'ness and shares insight on petite issues and loving yourself as a petite.
And she featured me as well here! http://blog.shorty-stories.com/2008/03/petite-model-isobella-jades-article.html
Strive on, no matter your height!