I was sent a link to Hello Mandarin Practice Chinese through Connecting China.
There are resources there for learning basic phrases for different situations such as business, survival, youth, etc.
You can also find Chinese volunteer teachers through this website, which is pretty cool.
From the site:
I'm a student in China.I love to talk with my foreign friends who are from all over the world about China.I love this proffesional that can make you knowledgeable in many feilds.I'm sure I will be a competent teacher and a good friend of you!