http://www.greatsunflower.org/ This is a website with the idea is to plant one specific cultivar of sunflower then go out and count how many bees visit your flowers in a 15 minute period and log that onto the web site. This was started back when the bee collapse was happening. I did it a couple years, but then had trouble getting seed of the cultivar they were tracking and kind of lost track of it. Something to think about for next season perhaps.