Elance feedback is open to the public. If you are working with Elance clients they understand that the feedback they leave you is public domain. I have seen in the past where other people "steel" feedback left for others and put it on their websites. But, other than that, it is open to the public.
For Tina, Elance is like Guru they are job boards where you sign up either for a fee or free depending on who you go with, and bid on projects to be completed. The competition is pretty high because there are some who will pay very low wages to someone in another country. There are a lot of places like Elance on the internet. Do a search on Google. There is also GetAFreelancer, freelancejobsearch, ifreelance, bidhire, freelancejobs.org and a billion more. Good Luck