It also contains helpful information about how to search the forum and advice for how to post your questions.
The first resource is the Ars Technica Distributed Computing Forum where you can ask questions and search the forum for more information.
If you search the forum you'll find plenty of advice on taking the boats, what to take...etc.
Search the forum and read the section on rail passes on http://www.seat61.com.
I've searched the forum, but cannot remember what these places are called, though I think "pueblos" may have been part of the name.
It also contains helpful information about how to search the forum, advice for how to post your questions, and obsolete information was deleted as recently as June 2008!
Well you could search the forum.
I searched the forum for "Tarakan Tanjung Selor" and found some posts.
But make sure you search the forum if you've got a specific question about travel to Thailand - chances are someone's asked it (or answered it) already for you!
It also has helpful information on how to search the forum and advice on how to post your questions.