The term 'governance' is popular but imprecise. It has at least six us
es, referring to: the minimal state; corporate governance; the new pub
lic management; 'good governance'; socio-cybernetic systems; and self-
organizing networks. I stipulate that governance refers to 'self-organ
izing, interorganizational networks' and argue these networks compleme
nt markets and hierarchies as governing structures for authoritatively
allocating resources and exercising control and co-ordination. I defe
nd this definition, arguing that it throws new light on recent changes
in British government, most notably: hollowing out the state, the new
public management, and intergovernmental manage-ment. I conclude that
networks are now a pervasive feature of service delivery in Britain;
that such networks are characterized by trust and mutual adjustment an
d undermine management reforms rooted in competition: and that they ar
e a challenge to governability because they become autonomous and resi
st central guidance.