Hi
It depends who you want to share with really.
Do you want to share it with people within your computer network (I.e if you have a network setup at home then you can access folders from each others computer.)
Or did you want to share it with people on a different network to yours.
If it's the prior then you could create a folder on your computer, right click and then click on the permissions tab.
You can them add the login names of the people you'd want to give access to view items in that folder.
This will allow them to view any document within this folder. You could also tailor the permissions to give specific people rights to modify delete add etc.
Now, if it's the latter, then your options are to scan the document to your self, either scan to email if your printer has that optio or simply scan to you hard drive and the attach it to a email and send it to who ever you need to.
I hope this helps any questions feel free to ask.