If you're curious about how people develop snowdrop mania, we've compiled a list of articles about the people, the societies, and the culture behind the madness. Links include a first-person tale from the man who sold a snowdrop for almost $600 this year (on eBay, natch), a gathering of the 'Immortals' among the snowdrop collectors, and photos of Hitch Lyman's astounding American collection of snowdrops.
Ever wish there was a Shazam for trees? LeafSnap is a new mobile app that can identify a tree's species by looking at a photograph of its leaf. It's a field guide for the twenty-first century, which uses facial recognition algorithms to analyze the leaf's contour so it can find a match from its index of species.