If You have enough room on Your hard drive start collecting a library of service manuals and user manuals of various oscilloscopes.
Initially if no room available post links to existing archives but do try to collect and collate manuals as well.
Now THAT is something I would find useful....chances are you would get a hit from me everytime I wanted to look something up. I have collections of manuals and documents in PDF but often just google because it's faster than sifting through my horribly disorganized, cryptic file naming conventions.