Wait, let me get this right. You're in Eugene and you don't have any idea where to get information about djembe playing???

Come on, you can't spit in Eugene without hitting a kid with blond dreds holding a djembe. IIRC, the front steps of that city government building across the street from Saturday Market is one place djembe players gather every Saturday. Also, the music shops and grocery stores in town have djembe circles and teachers posted on their bulletin boards.
If you really want online info, I know there are several Yahoo groups about djembe playing, so go to Yahoo --> Groups --> search "djembe".