  After about 10 years of growing interest for Generalized Parton Distributions
come the first results from dedicated experiments, using the golden Deeply
Virtual Compton Scattering process. After a short introduction, we will explain
the experimental methodology andshow results of the Hall A E00-110 experiment,
which aimed at measuring helicity-dependent photon electroproduction cross
sections. We will enphasize how this experiment provided the first stringent
tests of the scaling property of this process, allowing for the first time a
model-independent extraction of a linear combination of Generalized Parton
Distributions. We will also describe the Hall B E01-113 experiment which
measured the photon electroproduction beam spin asymmetry over a wide
kinematical range. The summary will include an outlook on the next generation
of experiments which are already planned at Jefferson Lab at 6 GeV, but also
after the planned 12 GeV upgrade.
