Why are some of my links green?

AniAniWeb has as its default that links to internal pages are in the standard blue link color (violet if already visited) and that links to external sites, such as http://www.yahoo.com are in green (dark green if already visited). That way you can easily tell which links are external and which internal. On your own AniAniWeb, you can actually change this behavior by changing the style sheet;click on the "looks" button to change the style sheet.