Have you come across PhDChat? I blogged about this before - you can join in the Twitter conversation with Nasima Riazat on Wednesdays, follow Nasima's tweets, read the blog or get involved in the wiki.
Then there's The Thesis Whisperer (aka Inger Mewburn, a research support lecturer in Australia). This is a fantastic resource - do take a look!
And here's the THE (Times Higher Education) article which has just come out, about The Thesis Whisperer.