A more comprehensive comparison of solr and elastic search
Good article comparing the 2 open source search server solutions built on top of Lucene.
Excellent article describing how predictive coding software can be used
Excellent article on ediscovery in the cloud.
Recommends a 2 pronged approach – Recommends a review of the Federal Rules of Discovery for data stored in cloud & clients should ensure that service contracts with Cloud providers include safeguards against inadvertent discoveries and mechanisms for complying with the Rules
Are you using google apps for your business? Have you considered ediscovery implications ?
Is google apps ready for ediscovery?