Friday, my site suddenly stopped being indexed by search engines.
I checked the servers and contacted Google. Google says their robots are trying to crawl but aren't able to crawl as fast as they would like. They suggested increasing memory and upgrading server. I contacted hosting company and they say I'm not using enough bandwidth to have a problem.
Someone suggested that the site might have been hacked. I reinstalled WP2.8.4. That hasn't done anything. I restored the database to an older version. That didn't do anything.