Having learned the verb 当たる about 6 months ago, I still don't really understand what it means when I find it in a sentence.
Does anyone have any links to pages which explain it?

The primary meaning in English in dictionaries, is 'hit'. I've never once seen an actual sentence where it has this meaning.

Goo helps a little with some examples:
http://dictionary.goo.ne.jp/search.php?MT=%C5%F6%A4%BF%A4%EB&kind=je&mode=0&kwassist=0

But I'm having trouble turning those examples into an actual meaning (or even a few meanings) for the word...

Is this just something where I have to be exposed to it for a long time?