Submission + - Google versus the Amicus Briefs (groklaw.net)
Microsoft has filed one, together with EMC Corporation, and NetApp, Inc. Scott McNealy has filed one with Brian Sutphin. Can McNealy be a witness for Oracle at trial, which he was [PDF], and also file an amicus brief? Well, he has. The Picture Archive Council of America, Inc. has filed one with the Graphic Artists Guild. Also there's one from the BSA. And finally Eugene Spafford, Zhi Ding, and Lee A. Hollaar have filed an amicus in support of Oracle. Hollaar seems to file a lot of amicus briefs.
So why do these entities and individuals care about this Java API case, do you suppose?