As law firms take advantage of evolving technologies to launch their own proprietary online legal tools, many are wrestling with a key question: How much should they be charging for them?

According to lawyers, consultants and vendors involved with the new web tools, the pricing equation is still being worked out.

“We are at the beginning of this journey of getting onto the web. We will find different things work for different types of lawyering,” said Scott Rechtschaffen, chief knowledge officer and shareholder at San Francisco-based employment law juggernaut Littler Mendelson.