text: **2.1. Submillimeter Properties**
  
  **3. VARIABILITY ANALYSIS**
  
  Submillimeter Luminosities. Since we are pri- 
  marily concerned with comparisons to Fermi observa- 
  tions, we note that only 129 of the SMA blazars (23 BL 
  Lacs and 106 FSRQs) were observed by the SMA in 
  either band during the three months August-October 
  2008. For these objects, submillimeter luminosities 
  are calculated in the standard way: 
  
  **3.1. Variability Index**
  
  We roughly characterize the level of variability of 
  each source using the variability index from Hovatta 
  et al. [8]: 
  
  (Fmax − σFmax) − (Fmin + σFmin) 
  (Fmax − σFmax) + (Fmin + σFmin) 
  νobsFobs 
  1 + z 
  V =  (2) 
  
  where DL is the luminosity distance, νobs is the fre- 
  quency of the observed band, and Fobs is the average  Figure 2 shows the distribution for the SMA blazars. 
  Objects with V ≤ 0 are typically unsuitable for more 
  
  eConf C091122 