I have recently been using an online system to learn Chinese. It is a new, more efficient, enjoyable and effective approach to Chinese language learning. I am learning from authentic, interesting content and I am free to do it on my own time. I can measure and follow my progress daily. Most importantly, I have already noticed a big improvement in my Chinese language. I highly recommend you give it a try.
Go to http://www.PublicChinese.com/index.jsp?ai=67
There is a free trial available.