We update the data of 3C 279.
This object has the highest polarization degree in our observation.
■ [blazar]PKS 0754+100 : active state
We have observed PKS 0754+100 since 5 November 2008.
This object has recently been active.
The object has brightened by about 1.8 mag for two month.
We continue to observe BL Lacertae,and update data.
This object has violent variabilities.
The figure shows that the light curve and the polarization degree in V band.
It seems that there is no definite correlation between light curve and polarization degree.