Name of the Speaker(s): Esko Valtaoja
Institution: Metsahovi Radio Research Station
Title of the communication: Multifrequency monitoring campaigns
(invited review)
Preliminary abstract (12 lines max.):
I will review the history, the present
status and the future prospects of multi-
frequency observations of active galactic
nuclei. I will argue that new breakthroughs
in AGN research are more likely to come
from coordinated observations and extended
monitoring efforts with existing facilities
than from new telescopes and observational
techniques. On the one hand,large amounts
of data are needed for statistically valid
conclusions about AGN behavior, on the other,
only simultaneous multifrequency data can
differentiate between possible models.