Since it seems the last one was lost forever into the archives, I'll be recreating the handbook. I doubt it will be the same as the original, but I'll try and make it close.
The Mole Handbook
What is a Mole?
A Mole is any character that utilizes Spring Attack/Flyby Attack/ similar effects and a burrow speed/Earth Glide/Incorporeality to pop out, attack their opponent, and retreat back into the ground/wall/ceiling. This strategy has some obvious inherent advantages. Because you're in a solid object, you can't be attacked or affected by anything that requires Line of Effect (and usually Line of sight as well). The only way for you to be attacked is for the target to ready an action to do so.
Table of Contents
- Races & Templates
Races and Templates
(saved)
The original handbook is still available here (for the moment): The Mole Handbook from Google's Cache
I also found this useful. Will save the cached version to my HDD.
edit: Here's a version pretty much like the original: The Mole Handbook @ The Web Archive.
Also, sorry if I took your space 
See if you can fit it into 2 posts, or simply skip my post and continue after. I see you're the original author, d'oh!
Actually, it was giving me crap trying to prevent double posting. With the formatting restrictions on this new site, either the posts are going to be rediculously long or not done very well.
For those who are intrested, here is the repost I will continue to work on: brilliantgameologists.com/boards/index.p...
You can post twice, than wait 5 minutes, thanpost twice etc. Thats how I pulled of 14 posts in a row in the I know it's a longshot but... thread.