Can someone tell me what the best source of Parts informaion is available, along with interchangeability.

I have purchased a few Elgin Service Manuals and am combining the informaion for quick reference, and would also like to know where I can get more of it to add to the references I have.

Are the Manuals the only source? Are there any parts information pages already available?
How do I find this kind of information.

Thanks all,

Did you look through the technical documents on the Elgin web page?