Leigh, join Adoptable Listings (under Groups tab), find the Florida listings and search for your doodle there. Don't forget to click on "Follow" on the bottom so you'll receive email notice whenever the lists are updated.
If you see a doodle you are interested in, click on the link with it and follow the shelter directions to fill out an application. Fill out several apps because many times, once a shelter has approved apps on file and a dog comes in , they will go through the approved apps even before they post on Petfinder.
Good luck in your search and let us know if we can help.