  We analyze and discuss the position of GRB 060218 and GRB 060614 in the Ep,i
- Eiso plane. GRB 060218 is important because of its similarity with GRB
980425, the proto-type event of the GRB-SN connection. While GRB 980425 is an
outlier of the Ep,i - Eiso correlation, we find that GRB 060218 is fully
consistent with it. This evidence, combined with the `chromatic' behavior of
the afterglow light curves, is at odds with the hypothesis that GRB 060218 was
a `standard' GRB seen off-axis and supports the existence of a class of truly
sub--energetic GRBs. GRB 060614 is a peculiar event not accompanied by a bright
Supernova. Based on published spectral information, we find that also this
event is consistent with the Ep,i - Eiso correlation. We discuss the
implications of our results for the rate of sub--energetic GRBs, the GRB/SN
connection and the properties of the newly discovered sub-class of long GRBs
not associated with bright Supernovae. We have included in our analysis other
recent GRBs with clear evidence (or clear no evidence) of associated SNe.
