I have A LOT of DSi sites in my favorites, and here are all of them:
↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓
DSiCade: www.dsicade.com
DSi2Play: www.dsi2play.webs.com
OnlineDSi: www.onlinedsi.webs.com
DSinvent: 202.87.167.38/dsinvent [i think?]
DSiCrash: www.dsicrashed.webs.com/home.htm
DSi-Pod: www.dsi-pod.webs.com
The Muncher: www.themicah00muncher.webs.com
GamingDSi: www.gamingdsi.webs.com
DSiPortal: www.dsiportal.webs.com
DSi Compatible: www.dsicompatible.uuuq.com
DSiBook: www.dsibook.vndv.com
DSi Data: www.dsidata.webs.com
DSi Hub: www.dsihub.vndv.com
DSiTabs [great site btw]: www.dsitabs.co.cc/

There are others, but I'm not counting Hull's other sites [because they can be found in "Sister Sites" on this sie] or mobile sites that you can reach by typing m. or .mobile before/after the site name, like www.m.google.com or www.google.mobile.com. If you have others, please comment below.
Enjoy checking out all these sites
[and sorry if i get some addresses wrong...]