src.stillopensolaris.org: After Oracle decommissioned www.opensolaris.org, a few very useful sites went into waste. The one I really missed was src.opensolaris.org, since in order to use DTrace effectively, sometimes you need to understand the internals. So I created a copy of the original site.
arc.stillopensolaris.org: The second site I missed was the LSARC/PSARC sites, you can get in-depth info about many parts of Solaris, simply by reading through the discussion e-mails about. I reconstructed the site based on the mail archives, and made it publicly available.