This is handled by the Infrastructure Team.

What should we monitor?

• We should monitor for keywords, to make sure that is the site is currently showing "tiki.org is experiencing unusually high traffic. Please check back in a few minutes or visit http://tiki.org/Community", we should know as well
• If profiles.tiki.org is working: http://irc.tiki.org/irclogger_log/tikiwiki?date=2012-10-01,Mon&sel=333#l329

Which sites

• All Tiki domains and related sites like wiki-translation.com
• All Consultants sites

Providers of uptime stats

• http://www.uptimerobot.com/

• Site monitoring
• Site uptime