This is an evolving list of my favorite Links of Modding Interest! If you'd like to see one added send me a link and I'll check it out!!!
The CS Wiki is one of the most important tools in a modder's arsenal and yet so many beginners overlook this wellspring of knowledge. There are many pro modders who have contributed to the Wiki and who learned everything they know from the wiki. So, when in doubt: check the Wiki. These are a few of my favorite Wiki Links!
CS Wiki Main Page: http://cs.elderscrolls.com/constwiki/index.php/Main_Page
Beginner's Tutorial- A basic guide for the beginning modder: http://cs.elderscrolls.com/constwiki/index.php/Category:A_beginner%27s_guide
Dialogue Tutorial- A basic walkthrough of creatting new dialogue and simple quest building: http://cs.elderscrolls.com/constwiki/index.php/Dialogue_Tutorial
Quest Building Tutorial- A more detailed quest building primer: http://cs.elderscrolls.com/constwiki/index.php/Quest_Tutorial
Working with Nifs 101- A breakdown of manipulating meshes (.nif) in Oblivion: http://cs.elderscrolls.com/constwiki/index.php/Working_With_Nifs_101_:_An_Introduction
Basic Companion Tutorial- A guide to creating a simple companion: http://cs.elderscrolls.com/constwiki/index.php/Simple_Companion_Tutorial
Rent a Room Tutorial- A basic guide to setting up your first inn: http://cs.elderscrolls.com/constwiki/index.php/Rent_A_Room_Tutorial
My First Shop- A guide on creating merchant and publicans: http://cs.elderscrolls.com/constwiki/index.php/My_First_Shop
AI Packages- Some useful info on understanding AI packages: http://cs.elderscrolls.com/constwiki/index.php/Category:Packages
NPC's, Horses, and You- A useful guide to companions and mounted AI packs: http://cs.elderscrolls.com/constwiki/index.php/NPCs%2C_Horses%2C_and_you
Better Retxtures- Another retex guide for GIMP users: http://cs.elderscrolls.com/constwiki/index.php/Better_Retextures_:_Detailed_Guide_For_NifSkope_and_the_GIMP
Support the CS Wiki!!!
TESNexus- A free download site for Obivion user made mods and modding tools: http://www.tesnexus.com/downloads/
Planet Elder Scrolls- Another free download site for Oblivion and Morrowind Mods: http://planetelderscrolls.gamespy.com/
Forum Planet- The Planet Elder Scrolls Forum: http://forumplanet.gamespy.com/planetelderscrolls/
Oblivion Forum- Bethesda Softworks Official Forum: http://www.bethsoft.com/bgsforums/index.php?act=idx
Oblivion Construction Set- Oblivion editor for mod creation: http://www.elderscrolls.com/downloads/updates_utilities.htm
GIMP- Free image editing software for texturing: http://www.gimp.org/
Blender- Free modelling software for building/altering meshes: http://www.blender.org/
BSA Commander- A BSA unpacking tool for opening Oblivion files: http://www.tesnexus.com/downloads/file.php?id=3311
NifSkope- The must have tool for retexturing and modeling: http://sourceforge.net/project/showfiles.php?group_id=149157&package_id=170735
FRAPS- Video Tool for taking ingame vids; free version has small watermark: http://www.fraps.com/
TES4Gecko- Manipulate Oblivion master files and plugins: http://www.tesnexus.com/downloads/file.php?id=8665
Alien Slof's Horse Mod: http://www.slofshive.co.uk/index.php?page=modarticle&modarticle/id=598q2mbi9zs
Liquidgraph's The Lost Spires: http://planetelderscrolls.gamespy.com/View.php?view=OblivionMods.Detail&id=3295
Team MMM's Martigen's Monster Mod: http://planetelderscrolls.gamespy.com/View.php?view=OblivionMods.Detail&id=4226
WillieSea's Haunted House: http://planetelderscrolls.gamespy.com/View.php?view=OblivionMods.Detail&id=3584
The Imperial Library- Source of Elder Scrolls Lore: http://www.imperial-library.info/obbooks/legendary_sancre_tor.shtml
UESP Wiki- Everything you need to know about Oblivion: http://www.uesp.net/wiki/Oblivion:Oblivion
The Elder Scrolls- Bethesda's Official Elder Scrolls Site: http://www.elderscrolls.com/home/home.php
AlienSolf's Hive- AlienSlof's Modding Site *Contains Adult Content: http://www.slofshive.co.uk/index.php