Some type of grid or spreadsheet with partno, common name, description, supplier, manufacturer (if known), comments/notes, and date would be awesome. Wouldn't a link to an debug/install thread be even more awesome.
As with anything like this, data maintenance and accuracy can be issues.
Just this week I needed camshaft seals so my choices where Mikes (XSdirect here in Canada), 650Central, boats.net, and OEM Yam dealer. Folks here (you know who you are) steered me away from Mikes, the ones that are leaking on me came from 650Central, shipping from boats.net is exorbitant. OEM original part has been superseded with a new part no, which again, this site suggested wasn't the same as the original part. Original part is still available so I went with that. Upshot of this rather long tale is that all this info could be found in one place, if available. My $.02