One of the wonderful features of NaNoWriMo is that everyone who takes part is so supportive of everyone else. We're all in this together and we all want each other to do as well as possible. There is a website which is packed full of fantastic resources - not least of all is the forum section where participants gather to chat, ask questions, share ideas and help each other overcome any problems along the way. If you set up a login with a user profile, you can also connect up with other writing 'buddies' and the sense of community becomes even stronger.
When I first came across this in 2010 I was rather intimidated. After all, what if I failed? What if I couldn't keep the pace up? What if something came up during November and I couldn't carry on with it? If, like I was, you are worried by such things, you can relax. In fact there is no pressure whatsoever. Even if you write nothing during November, nobody will think any worse of you. We all have last minute changes to our plans, and despite the best planning we don't all manage to do what we hoped. Many people participate but don't achieve the full 50,000 words, but that's okay. There's no such thing as failing. Any words you do write are words you might not have written if you didn't participate. That's a win however you think about it.
Then again, you might complete the 50,000 word challenge. How great would that feel?
Already planning to participate? Good luck.
Still thinking about it? I really hope you join us. It'll be great fun.
My NaNoWriMo username is ambenson, come on by and add me as a buddy. We can encourage each other along the way.