links for 2007-05-25

• Screw You, Kermit! 10 Websites To Save the Planet
  (tags: web2.0 society)
• Performance tuning Subversion
  (tags: sysadmin subversion tuning)
• PARLEY
  an API for writing Python programs that implement the Actor model of distributed systems, in which lightweight concurrent processes communicate through asynchronous message-passing.
  (tags: python programming erlang)
• Differences between Subversion and Mercurial
  …mercurial will ignore empty dirs when invoking ‘hg add’…
  (tags: scm mercurial subversion programming blog)
• The Secret to Memcached
  (tags: ruby rails programming sysadmin tuning cluster 247up blog)
• Sharedance
  a high-performance server that centralize ephemeral key/data pairs on remote hosts, without the overhead and the complexity of an SQL database.
  (tags: php programming sysadmin cluster 247up)