While recently searching for an "evil" emoticon (don't ask), I stumbled on an unlikely resource. Or, rather, the resource is pretty popular, but I hadn't thought about it until now. Worth checking out: the emoticon Wikipedia page. With a full list of emoticons ranging from basic smiles to more complex faces like a backwards baseball cap — d:-) — the page is a great resource for creative digital expression.
Emoticon listings are even broken down into eastern and western, listing all sorts of interesting emoticons I had no idea existed. (I'm particularly partial to this "not amused" emoticon: (*_*), and plan to use it often.) Check them out for yourself on Wikipedia, and happy emoting!