Hello!
First of all, I'd like to tell you that you have a great Dreamcast site here. Thumbs up!
I am one of the wiki-editors over at DCEmulation.org and I'm also running SEGA-DC.DE. SEGA-DC.DE is the biggest German Dreamcast website and we have plenty of interesting stuff over there - the are even some homebrew programmers over there.
DCEmulation.org is a nice Dreamcast emulation site and is also the oldest Dreamcast site that is still there (founded in 2000). There are lots talented coders over there, if you want to get started with dreamcast coding, then DCEmulation.org is a great place to get help.
It would be cool if you could add those sites to your links.
By the way, thanks for adding Dreamcast-Talk to my DC Top 100 toplist!