Some are strong, and some are weak. The weak, as is well known, are easily mastered—completely regular and, frankly, pathetic. But it doesn't have to be that way! The Society for the Strengthening of Verbs labors at its noble cause of strengthening verbs and nouns (in English too, though with less Sprachgefühl), increasing the stock of causatives, and generally messing around with German (excuse me, with Neutsch).
Sites matching images to pregiven text have been done before, but the texts are seldom as good as those used at zweiterblick's sudelbild: the pictures are matched to (randomly selected?) aphorisms of scientist and all-around Enlightened fellow GC Lichtenberg (about whom more). The relation is sometimes fairly literal, sometimes fairly opaque, but it's worth it for the idiosyncratic selection of aphorisms in any case.