I've done a few long-termish mostly solo trips now, and you hear about communities like [CouchSurfing][1] and [Warm Showers][2] (for cyclists).  However I also really enjoy staying in hostels.  Oddly, there aren't really forum communities on the hostel sites.

It's really quite disappointing when you reach a new hostel only to find it almost empty, when there's a busy fun one down the road.

Are there online resources or communities to find who is going to be at hostel X on a certain date, so you can try and meet up with other travellers?


  [1]: http://www.couchsurfing.org/
  [2]: http://www.warmshowers.org/