The dead links from the previous thread haven't been cached, so I did a search on the forums and, by my best guess, these are the threads that have been indexed there. Note that when several good threads on the same subject pop up while searching I added those results as well.
The online service manual and electrical schematics have been taken down. If anyone has working links post them in this thread and I will add them here.
Index of many threads regarding modifications and customizations can be found in this thread.
Blacking out the emblem and badge removal
Removing front badge
How to de-badge and re-badge your car
Headlamp and turn signal removal
Interior and audio
Replacing stock stereo
Aftermarket head unit installation
Center console LED replacement
Adding an armrest
Heater vent strobe lights
Utilizing the mini USB port
Engine, exhaust, and intake
Second o2 sensor bypass
Throttlebody coolant bypass