  We study a realization of light dilatons by considering Conformal Field
Theories deformed by a nearly marginal operator ${\cal O}$. This is discussed
in the holographic setup consisting of Renormalization Group flows that end on
a soft wall. We obtain a mass formula for the dilaton as an average along the
flow. Finally we discuss the holographic method to compute the condensate
$\langle {\cal O} \rangle$.
