- How to See the World on $25 a Day or Less
-- A great web-book on the basics of traveling.
-- Aims to list every hostel in the world. Their site also offers some
travel and transport help too.
- Hostelling International
-- Also known as the International Youth Hostel Federation (IYHF).
It is the largest hostel organization. Their site lists
only HI hostels, but does it by country maps for easy locating.
Note: their pages may not always be in your language.
- Rail Connection
-- Formerly part of hostels.com and now processed through RailKey.com, this page does a great job of explaining the
differences between the many Europe Rail Passes available these days.
You can also find a PDF-format map of the routes and stops under their
Trip Planning link. (Actually more helpful than the
official Eurail site.)
-- Depending on how you plan to travel, taking the bus can actually be
cheaper, more comfortable, and more convenient. Though they have fewer
routes, Busabout goes to all major cities and possibly more countries than
covered by your railpass and is designed for backpackers.
-- Another bus option. Their Europass is the cheapest pass available -- unlimited for 30 or 60 days.
It only goes to big cities, though 48 of those.