Multiwavelength Activities Related to GLAST's Blazars

1.  Production of new Catalogs and Reference Data (prior to launch)

- VLBA Imaging and Polarimetry Survey proposed to obtain a set of reference images for 1000 potential LAT sources in advance of GLAST launch

2.  Continuous Monitoring

-  VLA monitoring for a large sample of flat-spectrum, compact sources
- optical monitoring by:
 -- the Whole Year Blazar Telescope
 -- the Global Telescope Network (GTN)
- the European Network for the Investigation of Galactic nuclei through Multifrequency Analysis (ENIGMA)

3.  Target of Opportunity and Pre-planned Campaigns

to be defined...