Broken Links Removed from Topics Pages

Broken Links -- 7/22/08 bgb: new links for more important items found 7/22/08. Some fixed, as noted, and items reinstated to their pages.

Broken Links -- 8/13/08 bgb: link from 2001 -- leave out

Broken Links -- 8/26/08 bgb: link to AI Mag fixed

Broken Links -- 8/27/08 bgb: none moved back

Broken Links -- 8/29/08 bgb: a few moved back

Broken Links -- 9/1/08