*) Is there such a thing? I mean, you're awfully quiet and compared to the java community, which I know exists, you seldom help out in open-source projects. What's up with that? Haven't found the right project yet? Search, i.e. information retieval and NLP, is about as about as interesting as it gets, at least to me. General AI will be bourne out of IR and natural language processing. Not interested yet? There's a really cool Trie and some pretty sweet tree traversing algorithms that can perhaps be optimized. Have a look at my poor-mans [Levenshtein automaton over in-memory trie](https://github.com/kreeben/resin/blob/master/src/ResinCore/I...) and the same [over a disk-based trie](https://github.com/kreeben/resin/blob/master/src/ResinCore/I...). Sentiment analysis comes later on. It's great fun!