Can you put a price tag on high quality videos that help people gain professional skills? "Yes," says LinkedIn. Earlier this month, LinkedIn said for $1.5 billion it would buy Lynda.com, a CA-based company founded 20 years ago by a husband-and-wife team that now boasts a richly detailed video library of more than 267,000 videos and 6,300 courses. Douglas MacMillan of the WSJ shares the details of the deal and Betsy Corcoran of EdSurge shares why this deal is particularly exciting. Hint: It is not the impressive set of zeros trailing the dollar sign.