Evaluations conducted within the context of child custody litigation can be among the most complex evaluations undertaken by mental health professionals. Data collection for these evaluations typically falls into one of several foundational categories: direct and collateral interviews, psychological testing, review of records, and observed interactions. Within the category of ‘records,’ data from emails, text messages, social networking site (SNS) posts, various cell, tablet, or computer applications, and other online sources of interpersonal communication can provide evaluators with information useful for their evaluation’s purpose.