Purely commercial use is not subsidized. It increases competitiveness in international trade and research. Everyone interested in protecting their own access. Everything accessible is made available to all. Unacceptable behavior is discouraged.
Hackers can break into a chain of computers.
One should be wary when installing software off the net because it could have a virus. Absolute vs. relative URLs Check out Mosaic's Beginner's Guide to URLs for more information. Links within a document You can can create a link within your document. For example you can have the words, 'see below' , highlighted at the top of your document and create a link to the name, 'furtherdown', at the bottom. See the table of contents in the first lecture notes for an example for links within a document.