Would love to see a diy section or tech section per each generation. With pics and write ups. For us that are somewhat incline to do so. Whether it's how to take the headlights off,or door panels, manifold replacement,water pump,etc.. You get the point
That would be hard to do for each generation and even in each generation there are many differences in body and engine setups. Plus the things you have suggested are general maintenance and covered in the Haynes, Chilton's or Factory Service Manuals.
The DIY is generaly used for special things such as customizing (such as the Astro Overhead Console addition to the Impala's) the cars in different ways. Other items would be like adding after market parts to sup up the performance of the drive train such as different headers, superchargers or such we would add if some one has the information with the pics.