Question: Can somebody point me to a good website with information about learning Mandarin? 

Answer: You might want to check out http://www.chinese-forums.com.  There are a lot of information available.  I also found another site http://www.chinese-forum.net recently.  This one seems to be fairly new, not sure how active it is.
This question from the Yahoo Q&A forum is categorized in the topic: Family & Relationships