Expert Lists
Why would someone set themselves up as an expert and invite everyone in the world who's doing homework to send them e-mail? Sometimes it's with the idea of helping K–12 Internet users, sometimes it's to get publicity for a cause or company, and sometimes it's because the person really loves what they do and wants to share. It can be any number of things. But the upshot is that there are a lot of places on the Web where you can ask an expert a question. Let me give you two broad places.
TIP
The expert services here are free, but sometimes they can't answer your question. In that case, if you have a few bucks, you might want to try a for-fee answering service, where you pay a fee and (hopefully) get a useful answer to your question. ...
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