I know of two online sewing groups. Delphi Forums has one called Friendly Sewing, and About has general sewing information as well as a forum. The experienced sewists are helpful in the same way that experienced cyclists are.

In general, there is a lot of sewing information online, but it will be more useful after you have learned the basics in a hands-on setting.

Good luck with your new hobby. I am totally cracking up over the comments about music. Sewing music is a very important issue.