The GWG - Du runs this awesome GW site. Definitely go check it out. Because great GW sites are hard to find these days, and you don't want to miss this one.
Intergalactic - If you think you remember Chelsea, you do - she used to run the awesome HXR site, Smitten. Smitten is longer around, but DEFINITELY check out Intergalactic, a Heero site with one trendy, awesome layout and lots of content.
Afterglow - Chelsea's other awesome GW site is Afterglow, with a beautiful layout and great Relena information. The perfect compliment to Intergalactic!
The Official Milliardo Peacecraft Fanlisting Site - Lilly was an old affiliate of mine way back when I was into fanlistings. Her awesome Zechs fanlisting must be visited. Not only can you join if you're a Zechs fan, but she's working on getting plenty of great Zechs info there, too! Go look. Her layout is to die for.
Obsessed Fangirls of Duo Maxwell - If you're a Duo fan and you haven't seen Rebecca's OFDM...where have you been?? Go look. Just go look. She's got one awesome Duo site - with even more images of Duo than I have! And that's saying a LOT, since I have over 160.
The Shade - Kaika Rei maintains this awesome GW site, which is now back online and more awesome than ever! Definitely go check it out!