  Operators in N=4 super Yang-Mills theory with an R-charge of O(N^2) are dual
to backgrounds which are asymtotically AdS5xS5. In this article we develop
efficient techniques that allow the computation of correlation functions in
these backgrounds. We find that (i) contractions between fields in the string
words and fields in the operator creating the background are the field theory
accounting of the new geometry, (ii) correlation functions of probes in these
backgrounds are given by the free field theory contractions but with rescaled
propagators and (iii) in these backgrounds there are no open string excitations
with their special end point interactions; we have only closed string
excitations.
