Witcher 2 Sites

I've seen this game described as "irritatingly fantastic" which is pretty much accurate.  It looks great and the story is absorbing but the controls and UI are very clunky.  Nothing is well explained so you will need to consult these sites for help with problem areas like the ballista in the barricade section of the Prologue (hint, go back to a previous save once you get stuck with endless prompts to do the same thing over and over).

Info on the controls,
http://witcher.wikia.com/wiki/The_Witcher_2_controls
and inventory.
http://witcher.wikia.com/wiki/The_Witcher_2_inventory

These links above come from the Witcher/Witcher 2 Wiki.  When you do a search in this extensive wiki, make sure you put Witcher 2 in the search terms so that you end up with information for the right game.
http://witcher.wikia.com/wiki/Portal:The_Witcher_2


This is the best walk-through I've found. The combat/skill trees explanation is good, too (second link).
http://www.gamespot.com/features/6313939/the-witcher-2-walkthrough-game-guide/p-3.html


List of crafting diagrams (hyperlinked)
http://witcher.wikia.com/wiki/Category:The_Witcher_2_crafting_diagrams

How to craft video
http://www.youtube.com/watch?v=X7keASCNr-c

This site has good information on combat,
http://segmentnext.com/2011/05/23/the-witcher-2-combat-guide/

character skills, abilities and the talent tree,
http://segmentnext.com/2011/04/29/the-witcher-2-character-skills-and-talent-tree-guide/

a guide to alchemy/potions/bomb making,
http://segmentnext.com/2011/05/15/the-witcher-2-alchemy-guide-potions-oils-and-bombs/

a guide to the characters in the game,
http://segmentnext.com/2011/05/16/the-witcher-2-characters-guide

as well as a guide to fistfighting,
http://segmentnext.com/2011/05/15/the-witcher-2-fistfighting-guide/

how to play dice and poker,
http://segmentnext.com/2011/05/15/how-to-play-dice-poker-in-the-witcher-2/

and a guide to sex in the game.
http://segmentnext.com/2011/05/27/the-witcher-2-romance-sex-guide/

There is also a list of problems and fixes.
http://segmentnext.com/2011/05/18/the-witcher-2-crashes-fps-fix-sli-fix-ati-graphics-nvidia-performance-no-sound-errors-and-fixes/

Guide to Mutagens
http://www.gamefaqs.com/boards/975399-the-witcher-2-assassins-of-kings/59176466?page=1

Mods List (Witcher 2)
https://docs.google.com/document/pub?id=1YwUe7RqYlYi5NSB5LonVPO6NlQmlCIChGHTRc9XxnS0

Best Mods Downloads (Witcher 2)
http://witchernexus.com/downloads/top/alltime.php

Mods List (Witcher 1)
http://witcher2game.com/2010/06/must-have-mods-for-the-witcher/