I dont know, besides sun's site, but I wouldnt go there first
there are rpm depository sites that have collections of ready to run rpm's to install in rpm based linux systems, do a websearch for it
Redhat or Fedora's website should have such a thing, dont know for sure, never used it myself, if they dont, then their support is terrible
your looking for a program with an rpm extension, it gets installed with rpm -i <filename>
