new users to the dsi internet browser will be unhappy when they learn that it has no flash or java. this means no games and no videos. luckily some good people have created dsi sites that you can use. i have a list of them here. please tell me if i have missed any.
they are:

DSicade
DSigameplex
DSitube
DSitabs
DSihub

DSicade is a very good site were you can play simple games like sudoku, phong and touch mii. it also has a shoutbox where people can talk to each other using "shouts". unfortunatly you have to have a google acount to do this.
DSigameplex is still in its youth and hasn't got any games or reviews yet.
DSitube has a debate whether it is real or not. it is currently in maintenance but hopefully soon be running again.
DSitabs is a website where you can make tabs, which is usefull if you are on facebook but want to chat on shoutbox at the same time.
DSi hub. i am not entirely sure what you can do on this site because it is in maintenance.(it will start up again on 24th December)
there also a mobile version of facebook that works well with the dsi.
I hobe this post was helpfull and i am fully grateful for any comments pointing out mistakes, updates etc.

sorry i forgot to mention dsi-pod. dsi-pod is very much llike dsipaint but has more lnks(including some to get to other dsi sites)