There is a very easy service to share any kind of files:
http://www.dropbox.com/After signing you install a little free program on you machine and by dragging any file upto 2 GB into a specified folder, the upload to the server starts automatically (but according to file size might take some time). Just have to right-click and select 'copy public link' on your file on your computer and paste this link in a forum or email, and thereby this files can be downloaded from anyone in the known of your public link.
That's only the most advantageous thing about this service. You can of course keep all your files private and use it for having access to required files from a different computer. With others who also use this service you can give access even to whole folders on your machine and share whatever you want.
Kind regards..