Major+Websites+&+Portals

Are there any major guide sites (Web subject directories) about your subject on the Web? If so, annotate the best so users will know why they should be visited first. You might find these gateway sites by searching directories of specialized search engines. Try [|LII.org] and look for directories in your results. [|Google Directory] or [|Yahoo! Directory] may also help to identify these major sites.
 * Major Websites and** **Portal Sites**