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.