On-line book which is exactly what the title promises, plus other useful information such as travel tips and ordination procedures. However, as it is a 1994 edition, some information could be out of date.

For updated info see: http://www.retreat-infos.de/page95/page95.html

Information on Buddhist travel in Thailand based on fieldwork conducted from August 2009-September 2010:

http://wanderingdhamma.wordpress.com/buddhist-travel-in-thailand/