So says an article published by AP:
"Even just a few years ago, lawyers in corporate lawsuits sometimes agreed not to poke around in their opponents’ e-mails. Instead they’d confine themselves to paper memos and other documents on file as they pursued evidence.
"The overall market is worth close to $2 billion and growing at about 35 percent a year, says Michael Clark, who analyzes the field at EDDix LLC
. The number of companies offering computer-related evidence gathering appears to have doubled in the past two or three years, with several hundred now hanging a shingle."