The first round of the North American Mite-A-Thon is right around the corner. From May 2nd through May 17th submit your mite counts to help keep track of varroa across the United States, Canada, and Mexico.
You can also participate in the second round of mite counting, August 15th through August 30th.
Use a sugar shake, or an alcohol wash, to measure your varroa and submit your data here. The Honey Bee Health Coalition has a video demonstrating both methods.