There's a list of multi-OS repositories at http://wikis.sun.com/display/IpsBestPractices/Directory+of+Package+Repositories.
More on IPS, the Image Package System can be found at:
| Repository | Description |
|---|---|
| http://pkg.opensolaris.org/release/ | OpenSolaris Distribution, Releases |
| http://pkg.opensolaris.org/dev/ | OpenSolaris Distribution, Development Quality |
| http://pkg.opensolaris.org/contrib/ | OpenSolaris Distribution, Community Contributed Packages |
| http://pkg.opensolaris.org/pending/ | Packages in the pending repo are not qualified and not recommended for installation by users |
| https://pkg.sun.com/opensolaris/extra/ | OpenSolaris Distribution, Extras; Requires a certificate to access. See Certificate Generator https://pkg.sun.com/register/ |
| http://blastwave.network.com:10000/ | blastwave.org Repository |
| http://pkg.sunfreeware.com:9000/ | sunfreeware.com Reporitory |
| http://pkg.lifewithsolaris.jp:10000/ | lifewithsolaris.jp Repository |
| http://ips.homeunix.com:10000/ | ips.homeunix.com Repository |
| https://pkg.sun.com/opensolaris/ha-cluster/ | Open HA Cluster |