Hopslist
Gosh, there are lots of different kinds of hops out there. For my brewing so far this year, I’ve been using pelleted forms of two varieties, Target and Styrian Golding (with plenty left of each) but even if I get to the point where I have a reasonable handle on their characteristics, there are enough others for several lifetimes worth of brewing!
I recently discovered a website called [http://www.hopslist.com/](Hopslist), which is a well presented reference to many varieties. To be honest, it has far more information than I know what to do with but I’ve made a note of it when I get a bit further through my existing stocks.