In an effort to cut down on to many sticky threads but keep a whole bunch of good info I've created this list. If you have any suggestions please post them here and they can be added.

DIY:
How to make custom ignition leads!
How to make Battery Cables
8v Stem Seal replacement- head on.
How to mod a late booster for MK1.


INFO:
VAG-COM scanning, who can help
VW 2.0litre 16v cutaway pictures
The 2 litre 16v head cutaway and maximum porting dimensions thread.
VW 1.8T block cutaway pictures.
Camshafts for dummies + 8V application guide
Bike ITB info
Carburettors- FAQ and info.
technical write up on peloquin diff