KriD, there are several easy ways. First, you should have a few Mb of free webspace from your internet service provider where you can upload files.
Alternatively, try this:
http://www.yousendit.com/
Don't worry about filling any email fields in, simply:
Go to number 2,
Browse the file on your pc,
Click sendit (number 3).
Link the upload address
Similar deal with this one :
http://www.turboupload.com/
Browse for file,
Enter a meaningful file description,
Tick the terms of service box,
Upload the file.
Link address.
