This page has links to lots of useful information, well beyond the handful of links I've put here. Center for Disease Control is a US government agency. The CDC has useful info on travel health, including vaccine recommendations. The Universal Currency Converter is a good source of exchange rates. The Universal Packing List Excite City.
Net provides information of varying levels of detail for much of the world.
Travel Index . This major internet directory can help you find almost anything you're looking for. The more specific your question, the more likely you are to get a useful answer. Remember also to keep your posts to the appropriate group, using rec.travel.misc only for questions that are not relevant to other groups, not as a catchall. As in using newsgroups effectively in general, it is best to read the FAQs and lurk for a while before posting.